unusual

Something unusual is uncommon. It's odd, weird, or out of the ordinary in some way.

Unusual is the opposite of usual, thanks to the prefix un, meaning "not." Unusual things are noteworthy: you don't see them every day. A dog chasing a squirrel is usual. A squirrel chasing a dog would be unusual. Unusual can mean strange and bizarre, or just things that are rare. If someone is always absent, showing up would be unusual. Most surprising things are unusual.

Definitions of unusual
1

adj not usual or common or ordinary

“a scene of unusual beauty”
“a man of unusual ability”
“cruel and unusual punishment”
“an unusual meteorite”
Synonyms:
uncommon
not common or ordinarily encountered; unusually great in amount or remarkable in character or kind
different
differing from all others; not ordinary
extraordinary
(of an official) serving an unusual or special function in addition to those of the regular officials
odd
not easily explained
out-of-the-way
out of the ordinary
peculiar
markedly different from the usual
unaccustomed
not customary or usual
unique
highly unusual or rare but not the single instance
Antonyms:
usual
occurring or encountered or experienced or observed frequently or in accordance with regular practice or procedure
common
having no special distinction or quality; widely known or commonly encountered; average or ordinary or usual
accustomed, customary, habitual, wonted
commonly used or practiced; usual
chronic, inveterate
habitual
regular
in accord with regular practice or procedure
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adj being definitely out of the ordinary and unexpected; slightly odd or even a bit weird

Synonyms:
strange
antic, fantastic, fantastical, grotesque
ludicrously odd
crazy
bizarre or fantastic
curious, funny, odd, peculiar, queer, rum, rummy, singular
beyond or deviating from the usual or expected
eerie, eery
inspiring a feeling of fear; strange and frightening
exotic
strikingly strange or unusual
freaky
strange and somewhat frightening
gothic
characterized by gloom and mystery and the grotesque
oddish
somewhat strange
other
very unusual; different in character or quality from the normal or expected
quaint
strange in an interesting or pleasing way
quaint
very strange or unusual; odd or even incongruous in character or appearance
weird
strikingly odd or unusual
Antonyms:
familiar
within normal everyday experience; common and ordinary; not strange
common, usual
commonly encountered
common or garden
the usual or familiar type
everyday
commonplace and ordinary
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adj not commonly encountered

“two-career families are no longer unusual
Synonyms:
uncommon
not common or ordinarily encountered; unusually great in amount or remarkable in character or kind

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