/ frʌmp; NAmE / noun
( disapproving ) a woman who wears clothes that are not fashionable
► frumpy (also less frequent frump·ish ) adjective :
frumpy clothes
a frumpy housewife
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WORD ORIGIN
mid 16th cent.: probably a contraction of late Middle English frumple wrinkle , from Middle Dutch verrompelen . The word originally denoted a mocking speech or action; later (in the plural) ill humour, the sulks; hence a bad-tempered, (later) dowdy woman (early 19th cent.).