Not connected, joined, or bonded to anything; not married or in a committed relationship.
From prefix 'un-' (not) plus 'attached' (from Old French 'atacher'). The emotional relationship meaning emerged in the 20th century alongside modern dating.
Modern apps use 'unattached' and 'single' to categorize people for dating, but the word has become almost clinical—it defines someone by absence (what they're not attached to) rather than by presence.
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