To be frumpy is to be out of date style-wise. If you want to get on your mom's bad side, tell her she looks frumpy.

Have you ever seen one of those old one-piece bathing suits that cover almost the entire body? A woman wearing one of those today would be considered frumpy. This word has to do with how people — especially women — dress. A fashion model is not likely to be frumpy. When you look frumpy, your clothes are out of date and also modest, boring, or drab. Frumpy is the opposite of stylish.

Definitions of frumpy

adj drab, old-fashioned, and unattractive

dowdy, frumpish
unfashionable, unstylish
not in accord with or not following current fashion

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