Have you ever used these terms?
Can you be “ept,” or just “inept”? The riddle of unpaired words
Published on May 25, 2025
Credit: Suzy Hazelwood
Do you know what "unpaired words" are? They are terms we assume should exist, based on standard linguistic rules, but don’t. For example, if "nonverbal" is the opposite of "verbal," shouldn’t "nonchalant" be the opposite of "chalant"? As it turns out, it’s not so simple. To test your knowledge and learn more about unpaired words, we’ve crafted a game where you’ll have to guess: Do these words exist, or have we played around by subtracting or replacing their prefixes and suffixes? Game on!
"Ruthful"
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If ruthless means lacking compassion, shouldn’t an empathetic person be ruthful?
Ruthful does exist. Indeed, ruth is a noun referring to sorrow or compassion, originating from Old English hrēow, meaning "pity." While ruthful was once a common word for "compassionate," it has mostly fallen out of use.
"Nocent"
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Innocent means someone is guiltless, or it can refer to their naiveté. But can someone be nocent?
Yes! The term nocent exists. Derived from Latin nocens (meaning "guilty" or "harmful"), nocent was historically used to mean "criminal" or "harmful." Granted, it is rare today. But it does appear in older legal and literary texts.
"Ept"
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Can the same rule of innocent apply to inept? If an inept person lacks skill, does ept mean they "enjoy aptitude"? Inept comes from the Latin ineptus (unsuited, absurd), but Latin had no standalone eptus.
Ept is recognized by some dictionaries, but you could call it a made-up word. It was only in modern texts in English that writers began jokingly playing around with ept and eptitude. So, can you use ept in a Scrabble game? That’s for you and the other players to decide!
"Gruntled"
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One can be dissatisfied or satisfied, and one can be disgruntled. But can one be gruntled?
Surprisingly, gruntled does exist! It’s an old-fashioned word meaning "pleased, contented." It originates from the verb gruntle, meaning "to grumble". Over time, the prefix dis- took on an intensifying role rather than forming a strict opposite. The word gruntled was revived in the 20th century, mostly for humorous effect.
"Sheveled"
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Disheveled means messy or disordered. It comes from the Old French deschevelé ("with disordered hair"). Does that mean sheveled describes neatness?
Well, sheveled is an extinct word. It was created by aphesis, which means it was derived from disheveled by losing the first syllable. It did mean "tidy," but was extremely rare, and has long vanished from common use.
"Agefull"
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If ageless means that something does not age, does agefull mean that something is enriched with history and experience?
No! Agefull does not exist. While it would seem like a logical word formation, agefull has never been a standard English word. We might describe something rich with history as timeworn or venerable, but agefull never made the cut.
"Asperate"
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If exasperate means "to annoy or frustrate", what would the opposite word mean? To calm down? To smooth things over?
Asperate does exist, but it doesn’t mean what you think. It’s an archaic word meaning "to make rough or uneven." Quite the opposite! It comes from the Latin asper, meaning "rough."
"Provise"
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To improvise means "to come up with something unpreparedly," on the spot. Nowadays, you can simply say improv and everyone will understand exactly what you mean. So, does provise mean "to plan ahead," then?
Yes! Provise is a real but rare word. It means "to foresee or provide beforehand." It comes from Latin providere, meaning "to provide."
"Chalant"
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Nonchalant means "unconcerned, calm, and casual." As you may have guessed, it derives from Old French, precisely from the verb nonchaloir, which means "to disregard" or "to not be concerned." So, can you be chalant?
No, the term chalant does not exist. The adaptation of chaloir never entered English. We don’t have a perfect antonym for nonchalant; perhaps concerned, caring, or attentive come closest.
"Whelmed"
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The logical assumption would be that when you are neither overwhelmed nor underwhelmed, you are whelmed. Don’t you think?
But that’s not how it works. Yes, whelmed does exist, but not as a midpoint between the other two. Whelm, from Old English hwielfan, meant "to cover over" or "submerge." Eventually, we added the prefix "over" to it, intensifying the action, but the meaning remained the same.
"Plussed"
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If nonplussed means "unruffled," or "unbothered," is plussed another word for "baffled"? Nonplussed comes from Latin nonplus ("no more, nothing further"). Originally, it meant "at a loss," or "bewildered," but its modern usage shifted to a synonym of "untroubled."
Plussed has been jokingly used as an opposite, a backformation of the original, but was never a real word. Some people understand it to mean "shocked" or "ruffled." But we don’t think anyone would make plussed their go-to synonym for "surprised."