Big Words, Lost Readers: Why Simple Language Wins
Tuesday, September 08, 2026
Somewhere in your drafting process, you found a better word. Not "walked," but "sauntered." Not "said," but "expostulated." It felt good. It felt like proof that you know your way around a sentence. Here is the uncomfortable truth nobody wants to say out loud to writers who love language: that word probably cost you a reader.
The Vocabulary Trap
Writers who read a lot tend to fall in love with language itself, not just story. That love is not a flaw. It is usually the reason you started writing in the first place. But somewhere along the way, that love gets tangled up with a quiet, unspoken need to prove something. To show the reader (and maybe yourself) that you have range. That you know the difference between "glance" and "peruse" and "scrutinize," and by God, you are going to use all three in the same chapter.
The problem is that every unfamiliar word is a tiny toll booth. The reader has to slow down, translate, and reconstruct meaning before they can get back to the story. Do that once and nobody notices. Do it every third sentence and the reader stops living in your scene and starts working through your prose like it is a crossword puzzle.
That is friction. And friction is the enemy of immersion.
What Flesch-Kincaid Actually Measures
The Flesch-Kincaid grade level formula estimates how many years of schooling a reader needs to easily understand a piece of text, based mostly on sentence length and syllable count. Longer sentences and longer words push the score up. Shorter sentences and simpler words pull it down.
Here is the part that surprises new writers. The average adult reader in the United States reads comfortably at somewhere around an 8th grade level, and a huge share of readers sit lower than that. That is not an insult to readers. It reflects how most people actually process language when they are reading for pleasure, tired after work, half distracted, wanting to relax into a story rather than decode it.
Now look at what actually sells. Run a popular thriller through a readability checker and you will often see a grade level in the 4th to 7th grade range. Same with most bestselling romance and commercial fiction. These are not unsophisticated books. Many are written by genuinely brilliant, well read authors. They simply understand something a lot of newer writers miss: accessible prose is not a lower form of writing. It is a harder skill, aimed directly at the reader instead of at the writer's own reflection.
Simple does not mean dumb. It means clear. It means the reader never has to stop and work to understand you, so they never stop feeling what you wanted them to feel.
Simple Does Not Mean Dumb
There is a stubborn myth in some corners of the writing world that plain language signals a plain mind. It is the opposite. Cutting a sentence down to its essential words, without losing the feeling underneath it, takes far more control than piling on adjectives. Anyone can reach for a thesaurus. It takes real craft to make a reader's chest tighten using only words a ten year old already knows.
Big, ornate vocabulary has its place. Literary fiction, poetry, certain narrators, certain genres built around voice as much as plot. That is a real and valid choice. But if you are writing commercial fiction and hoping for a wide readership, ornate is usually working against your own goals.
Before and After: Five Real Fixes
Here is the same moment, told two ways. Same meaning. Same emotional weight. One makes the reader work for it. One just lands.
SCENE: A SUNSET
SKIP THIS
The incandescent orb descended languidly beyond the undulating horizon, its effulgent rays refracting through a kaleidoscopic panoply of vermillion hues.
TRY THIS
The sun sank behind the hills, painting the sky red and gold.
SCENE: A CHARACTER'S ANGER
SKIP THIS
A conflagration of indignation ignited within her, an incandescent fury that threatened to consume her every rational faculty.
TRY THIS
Anger burned through her, hot and sudden, until she couldn't think straight.
SCENE: A TENSE ACTION MOMENT
SKIP THIS
He careened precipitously through the labyrinthine corridor, his cardiac rhythm accelerating exponentially as adrenaline suffused his trembling extremities.
TRY THIS
He ran through the maze of hallways, heart pounding, hands shaking.
SCENE: A ROMANTIC MOMENT
SKIP THIS
Her proximity engendered within him a visceral paroxysm of longing, an ineffable yearning that defied verbal articulation.
TRY THIS
Being this close to her made his chest ache. He didn't have words for it. He just didn't want her to move.
SCENE: A DIALOGUE TAG
SKIP THIS
"I never asked for your help," she vociferated acrimoniously.
TRY THIS
"I never asked for your help," she snapped.
Notice what did not change in any of these pairs. The emotion is identical. The stakes are identical. What changed is how fast the reader gets there, and how much of their energy is left over to actually feel it once they arrive.
Clarity Is a Skill, Not a Compromise
The writers who dominate the thriller and romance charts year after year are not writing simply because they lack a bigger vocabulary. Many of them could write circles around a thesaurus if they wanted to. They choose clean, direct prose because they understand the job. The job is not to remind the reader that the author is smart. The job is to get out of the way so the story can happen directly inside the reader's head.
Think about the last book you could not put down. It was probably not full of words you had to look up. It probably moved fast, felt effortless, and made you forget you were reading at all. That effortlessness did not happen by accident. Someone worked hard to make it feel easy.
That is the real trade you are making every time you choose the plain word over the fancy one. You are trading a small moment of looking impressive for a much bigger win: a reader who stays with you until 2am because nothing in your sentence made them stop.
Try this test on your next chapter. Read it out loud. Any word you stumble over or that makes you pause to remember what it means is doing the same thing to your reader, just quietly.
Key Takeaways
- Most readers process text most comfortably around an 8th grade reading level, even highly educated ones reading for pleasure.
- Flesch-Kincaid scores reward shorter sentences and shorter words, and bestselling commercial fiction consistently scores low on that scale.
- Every unfamiliar word costs a small amount of reader energy. Enough of those costs and the reader closes the book.
- Simple, accessible prose is a deliberate craft choice made by many of the most successful working authors, not a lack of skill.
- The goal of a sentence is to transmit feeling, not to showcase vocabulary.
Being Understood Beats Being Impressive
Readers do not leave five star reviews because a sentence made them reach for a dictionary. They leave five star reviews because they could not stop turning pages. They stick with authors who make reading feel effortless, book after book, because effortless reading is rare and it is precious.
You do not need a smaller vocabulary. You need better judgment about when to use it.
Write to be understood first. The impressive part takes care of itself once readers are hooked enough to notice.
Test Your Readability Now For FREE
A free readability test for authors from AuthorHub. Paste or upload a writing sample and get instant Flesch Reading Ease and Flesch-Kincaid Grade Level scores, plus a plain-English read on what they actually mean - what grade level your prose sits at, how hard it is to get through, and whether that matches the readers you're writing for. No account required, no limits. Writing samples are analyzed in the moment and never stored.
Hi, I'm Tim Hewitt
CEO of AuthorHub.io
I won my first writing scholarship in high school by beating more than 300 other writers in a nationwide contest, and that award gave me something money couldn't buy: the belief that my words mattered. Since then I've spent decades learning what makes writing work: how to find your voice, how to keep readers turning pages, marketing that really sells books, and how to spot the small craft problems that quietly sink good stories. This blog is where I share everything I've picked up along the way.
