What does contrary mean?
Contrary functions primarily as an adjective meaning opposed or opposite in nature, direction, or outcome to something else, as in 'a decision contrary to advice' or 'contrary to popular belief', where it signals contradiction with an accepted idea. Applied to people, it takes on a behavioural shade: a contrary person is wilfully awkward, disagreeing or doing the reverse simply because agreement or compliance was expected — a usage that can sound teasingly affectionate or mildly exasperated depending on tone. Contrary also exists as a noun, denoting the logical opposite of a statement, though this survives mainly in formal logic and in the fixed idiom 'on the contrary', which emphatically asserts the reverse of what has just been said. Related phrases such as 'quite the contrary' reinforce this rhetorical role. Derived forms include contrarily, contrariness, and the older-sounding adverb contrariwise. With its Latin roots and long history in English, contrary remains indispensable for expressing opposition, whether of facts, arguments, or temperaments.
Opposite in nature, direction, or meaning; opposed to something.
"The verdict went contrary to everyone's expectations."
Frequently appears in the phrase 'contrary to' when contradicting a belief or expectation.
The opposite of something, especially the opposite proposition in logic.
"On the contrary, the evidence supports her claim."
Chiefly used in formal logic and in the idioms 'on the contrary' and 'to the contrary'.
Used mainly in philosophical and logical contexts to refer to opposing propositions or qualities.
"Medieval logicians debated how contraries could both be false."
'Contrary to popular belief' is one of the most quoted phrases in English — usually right before someone overturns an assumption you didn't know you had.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of contrary
Contrary comes from Latin 'contrarius', meaning 'opposite' or 'turned against', formed from 'contra' ('against'), itself related to 'contra-' compounds like contrast and controversy. It entered English via Old French in the medieval period, well before the 14th century, and has carried its core sense of opposition ever since. Its cognates include converse and counter, all descending from the same Indo-European root of turning against.
Related word forms
How contrary is actually used
As an adjective it is common in both formal and everyday use; the 'perverse/disagreeable' sense of a person is informal and often affectionate or mildly critical. The noun sense survives mainly in formal logic and in fixed phrases like 'on the contrary'. Stress falls on the first syllable.
Easily confused with contrary
Contrast is the noticeable difference between two things set side by side, whereas contrary means directly opposed or going against something.