Many word opposites, or antonyms, are familiar, such as good and bad or black and white. Others are easy to spot because they鈥檙e formed by adding prefixes before the word, such as anti-, dis-, or non- (e.g., approve/disapprove).
Other word opposites are, well … it’s surprising to learn that they even exist in the first place. Get ready, because we’re taking you through nine unlikely words with counterparts.
Do you tend to stay up late at night? If you’re active at night (as are many animals), you鈥檙e nocturnal.
Nocturnal ultimately comes from Latin nox, meaning 鈥渘ight.鈥� It is a word most people are familiar with, but what’s its opposite?
The opposite of nocturnal is diurnal,听which means “during the day.” The term comes from the Latin diurnalis, meaning 鈥渄aily,鈥� from 诲颈脓蝉, meaning and source of “day.”
Humans are typically diurnal, but you rarely hear anyone call us that. The adjective is more often used to describe animals that are active during the day and sleep at night, or to describe something that has a daily cycle, such as the tide or flowers that open by day and close by night.
A placebo is a harmless pill, medicine, or procedure prescribed for the psychological benefit of the patient. Placebo means 鈥淚 shall please鈥� in Latin.
A placebo is also an inert substance used in controlled trials to test the efficacy of another drug. Most people know the word聽placebo, but do you know this word’s lesser known opposite?
The opposite of placebo is the sound-alike word nocebo, coined in 1961 by one Walter Kennedy. It means 鈥淚 shall harm.鈥�
Ever heard of the placebo effect? It’s when a patient has a positive result from a placebo that鈥檚 attributed to their belief in that treatment. Well, the聽nocebo effect has been called 辫濒补肠别产辞鈥檚 evil twin, because warnings about possible side effects can result in a patient experiencing negative symptoms just because they heard about them.
D茅j脿 vu is that eerie聽feeling you get when you think you鈥檝e previously experienced something that you鈥檙e actually encountering for the first time.
The French term literally means 鈥渁lready seen.鈥� Its scientific name is promnesia. But, there’s something just as spooky as d茅j脿 vu … its opposite!
The opposite of d茅j脿 vu can be considered jamais vu, which is when you do not recognize something (e.g., a word, person) that should be familiar. It also comes from French and means 鈥渘ever seen.鈥�
There鈥檚 also a French term for the phenomenon commonly called the tip of your tongue. Presque vu, or聽 鈥渁lmost seen,鈥� means you can鈥檛 immediately recall a familiar word, name, or situation, but you eventually conjure up the elusive memory.
Sometimes, people who are held hostage form emotional and psychological bonds with their captors. Strange, right?
Well, it does happen, thanks to the stress, dependency, and need to cooperate in such situations. The name for this experience is聽Stockholm syndrome.
It was recorded in 1973, named for a six-day bank siege in Stockholm, Sweden during which a bank employee became romantically attached to a robber who held her hostage. Another famous example of Stockholm syndrome involves the 1974 kidnapping of newspaper heiress Patricia Hearst.
And, believe it or not, there is an opposite to this phenomenon, too.
Just as surprising as Stockholm syndrome is its opposite: Lima syndrome, which is when kidnappers develop sympathy for their hostages and let them go without using them as bargaining chips.
The term takes its name from the 1996 Japanese embassy hostage crisis in Lima, Peru. Members of a militant movement took several hundreds hostage at a party held at the residence of Japan鈥檚 ambassador to Peru. They were freed, thankfully, within a few hours.
Roughly 90 percent of humans are righties (right-handed), so that leaves 10 percent as lefties (left-handed).
Only an estimated 1 percent of people are truly (not as the resulting of training, as in baseball) ambidextrous, or “able to use our right and left hands equally well.” The word comes from the Latin roots dexter, which means 鈥渞ight-handed, favorable, skilled鈥� and the prefix ambi-, “both.”
But, what if you’re all thumbs?
Even rarer than people who are ambidextrous are those who are ambilevous, an obscure word taken as “clumsy in both hands” (though sometimes it’s treated as a synonym for ambidextrous, making it quite the dextrous word).
The term also comes from the Latin prefix ambi-, meaning “both,” and laevus, meaning “left.” (Left-handers always get a bad rap. You know what the word sinister originally means in Latin? “Left.”)
In the digital age, you may know Anonymous as an international network of activists and hackers who do not disclose their identities. The group took its name from the word anonymous, which means “not named or identified.”
Anonymous ultimately goes back to Greek roots meaning “without a name.”
We often see the word聽anonymous聽used to describe an individual who prefers to remain unknown, such as an anonymous author or an anonymous donor. What do you call yourself if you want that recognition, though?
The opposite of anonymous is … onymous! (The an– in anonymous is a Greek prefix, an– or a-, meaning “without.”) For instance, He stopped writing anonymous op-eds when his onymous submission was a hit.
Onymous is a relatively obscure, but useful, back formation of anonymous dating back to the 18th century. A back formation is the process of creating a new word by removing some part of it, such making typewrite from typewriter.
You might exclaim “Oh no!” when there鈥檚 a catastrophe, or “a sudden disaster that causes damage and suffering.”
People have been experiencing catastrophes for eons, but the term dates back to the late 1500s in English. It comes from the Greek katastrophe, meaning 鈥渁n overturning or a sudden end,” originally said of an unhappy ending in a drama.
Fortunately, not everything is doom and gloom …
The opposite of catastrophe is eucatastrophe. J.R.R. Tolkien, who wrote the epic fantasy series The Lord of the Rings, coined the term by simply adding the Greek prefix eu-, meaning “good or well,” to catastrophe.
He wanted a word to describe the sudden turn of events at the end of a story, which ensures the聽protagonist has a happy ending.
When we feel distress, we鈥檙e experiencing extreme anxiety, sorrow, or pain. Via French,听distress ultimately goes back to the Latin distringere, “to stretch apart.” How very apt.
When we aren’t feeling the anxiety or pain that stress brings, what are we feeling?
An opposite of distress is eustress, coined by endocrinologist Hans Selye who, like Tolkien, used the Greek prefix eu-, meaning “good or well.”
While most of us don鈥檛 use this term in our everyday speech鈥攚e鈥檙e more likely to say 鈥淚鈥檓 feeling fulfilled鈥濃��eustress is sometimes used in psychology to describe a healthy and stimulating level of stress. Good stress.
Optimum refers to 鈥渢he best condition” of something, e.g., the optimum work-life balance.
The term comes from the Latin optimus, meaning “best.” We’re afraid to ask, but here goes: What’s the “worst”?
The word pessimum means “the worst or least favorable condition.” The term comes from the Latin pessimus, meaning “worst.”
Pessimum is generally used in scientific contexts.
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