Being the only one of its kind, or very special and unlike anything else. It suggests strong originality or rarity.
From French 'unique', from Latin 'ūnicus' meaning 'only, single, one of a kind', from 'ūnus' (one). It entered English in the early 1600s.
Unique is built from 'one', so strictly speaking something can’t be 'very unique'—it either is one-of-a-kind or it isn’t. That’s why some style guides still complain about 'more unique' or 'very unique'.
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