Not appropriate, attractive, or suitable; something that doesn't look good on a person or doesn't fit their character.
From 'un-' (not) combined with 'becoming' (suitable or attractive). The root 'become' comes from Old English and originally meant 'to be fitting or suitable,' leading to the prefix form meaning the opposite.
In the 1800s, calling something 'unbecoming' was serious social criticism—it meant you were violating expectations of your station, gender, or character. Jane Austen's characters were constantly worried about being 'unbecoming'!
Heavily applied to women's appearance and behaviour as moral judgment; what is 'unbecoming' for women reflects patriarchal dress/conduct codes, while men's equivalent transgressions go unnamed.
Avoid as evaluative descriptor of appearance/conduct; if needed, be specific about actual ethical concern rather than gendered propriety.
["inappropriate for context","violates agreed norms","unflattering"]
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