Antonyms of adj dapper

1 sense of dapper

Sense 1
dapper, dashing, jaunty, natty, raffish, rakish, spiffy, snappy, spruce -- (marked by up-to-dateness in dress and manners; "a dapper young man"; "a jaunty red hat")

INDIRECT (VIA fashionable) -> unfashionable, unstylish -- (not in accord with or not following current fashion; "unfashionable clothes"; "melodrama of a now unfashionable kind")

Similarity of adj dapper

1 sense of dapper

Sense 1
dapper, dashing, jaunty, natty, raffish, rakish, spiffy, snappy, spruce -- (marked by up-to-dateness in dress and manners; "a dapper young man"; "a jaunty red hat")
       => fashionable (vs. unfashionable), stylish -- (being or in accordance with current social fashions; "fashionable clothing"; "the fashionable side of town"; "a fashionable cafe")

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