Vocabulary
Words That Sound Smart but Are Often Used Wrong
Ten sophisticated words people commonly misuse, what they actually mean, correct examples, and simple ways to remember the difference.
By Vocabaura Editorial · Published 20 August 2026 · 9 min read
Quick answer
The most commonly misused “smart” words include imply and infer (speaker vs. listener), disinterested (impartial, not bored), bemused (confused, not amused), comprise (the whole comprises the parts), enormity (great evil or gravity, traditionally not size), and notorious (famous for something bad).
Some words carry a quiet signal of precision. They are the ones that turn up in editorials and cover letters, and they make a sentence sound considered. That is exactly why using them loosely is costly: the reader who knows the word notices, and the sentence lands slightly off.
The ten below are not obscure. They are words most people already use, and a fair number use in a sense the word does not quite have. Where usage has genuinely shifted and dictionaries now record more than one sense, that is noted rather than glossed over.
1. Imply vs. Infer
This is the classic pair, and the distinction is about direction. The speaker or writer implies; the listener or reader infers. One puts the meaning in, the other takes it out.
Correct
She implied that the meeting went badly.
Correct
I inferred from her expression that the meeting went badly.
Off
“Are you inferring that I lied?”, the accusation is about what the other person suggested, so it should be “implying.”
2. Disinterested
People often use disinterested to mean bored. It traditionally means impartial, having no personal stake in the outcome. That is a compliment when applied to a judge, an arbitrator, or a referee.
Correct
We need a disinterested third party to settle the dispute.
Means something else
He seemed disinterested in the lecture. (If you mean bored, use uninterested.)
3. Bemused
Bemused looks like amused and is constantly used as if it were a mild version of it. It actually means confused, bewildered, or lost in thought. A bemused expression is puzzled, not entertained.
Correct
He stared at the instructions with a bemused frown.
Off
She was bemused by his joke, if she laughed, she was amused.
4. Nonplussed
Nonplussed means so surprised or confused that you do not know how to react. The “non-” prefix makes it look like it should mean unbothered, and in American usage that opposite sense has become common enough that major dictionaries now record it as an informal North American meaning.
That leaves nonplussed genuinely ambiguous. In careful writing, the safest move is to choose an unmistakable word instead: bewildered if you mean thrown, unfazed if you mean untroubled.
5. Ironic
Ironic is not a synonym for unlucky, coincidental, or merely surprising. Irony involves a pointed gap between what is expected or stated and what is actually the case.
Ironic
The fire station burned down. The outcome is the opposite of what the place stands for.
Just unlucky
It rained on the day of the picnic. Unfortunate, but nothing about a picnic makes rain contrary to expectation.
Coincidence
I ran into my neighbor in another country. Surprising, not ironic.
6. Notorious
Notorious means famous specifically for something bad. It is not a neutral upgrade of “well-known,” so applying it to someone you admire reads as an insult you did not intend.
Correct
The intersection is notorious for accidents.
Off
She is a notorious pianist. (Use renowned or celebrated.)
7. Comprise
The whole comprises the parts, never the reverse, and traditionally never with “of.” If you want the parts first, use compose or make up.
| Form | Status | Example |
|---|---|---|
| The album comprises twelve tracks | Traditional and safe | Whole first, no “of” |
| Twelve tracks compose the album | Correct | Parts first |
| The album is composed of twelve tracks | Correct | Passive with compose |
| The album is comprised of twelve tracks | Widely used, widely criticized | Avoid in formal writing |
8. Enormity
Enormity traditionally means extreme moral gravity or monstrous wickedness, the enormity of a crime. For sheer size, the traditional choice is enormousness, immensity, or magnitude. The size sense is now common and appears in dictionaries, but in writing about scale rather than horror, a clearer word avoids the distraction.
Traditional
The tribunal weighed the enormity of the offenses.
Clearer for size
The sheer magnitude of the project surprised everyone.
9. Peruse
Peruse means to read carefully and thoroughly. It is very often used to mean the opposite, to skim. Because both senses now circulate, a reader cannot always tell which you meant, which defeats the point of choosing a precise word. Say “read closely” or “skimmed” and the sentence stops being ambiguous.
10. Fortuitous
Fortuitous means happening by chance. The chance may be good or bad; the word says nothing about luck by itself. It gets pulled toward fortunate because the two look alike, so if you mean a happy accident, “a fortunate coincidence” is unambiguous.
Correct
Their meeting was entirely fortuitous, neither had planned to be there.
Off
It was fortuitous that we had insurance. (You mean fortunate.)
Quick check
0 of 3 answered
Free practice, no account or credits needed.
1. “I inferred from the report that costs were rising.” Who is doing the inferring?
2. A disinterested observer is…
3. Which sentence uses comprise in the traditional way?
Knowing the Word Isn’t Always Enough
Every word above is one that people genuinely know. The trouble is that knowing a definition is only part of using a word well. A word carries several kinds of information at once, and a sentence can go wrong on any of them.
- Meaning, the core sense, including senses that have shifted over time.
- Context, the situations where the word actually appears in real writing.
- Tone, whether the word praises, criticizes, or stays neutral. Notorious fails here more often than anywhere else.
- Formality, whether it belongs in a message to a colleague or a published report.
- Grammar, the structures the word requires, such as comprise taking the whole as its subject.
- Nuance, the small distances between near-synonyms that decide which one is right.
That is why a dictionary entry alone rarely settles a usage question. What settles it is seeing the word in context, next to its neighbors, with the tone and register made explicit.
None of this is about avoiding sophisticated words. It is about earning them. A precise word used precisely does more work than three vague ones, and used loosely, it does less than none.