Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun stick-in-the-mud

1 sense of stick-in-the-mud

Sense 1
plodder, slowpoke, stick-in-the-mud, slowcoach -- (someone who moves slowly; "in England they call a slowpoke a slowcoach")
       => dawdler, drone, laggard, lagger, trailer, poke -- (someone who takes more time than necessary; someone who lags behind)

Antonyms of adj stick-in-the-mud

1 sense of stick-in-the-mud

Sense 1
fogyish, moss-grown, mossy, stick-in-the-mud (predicate), stodgy -- ((used pejoratively) out of fashion; old fashioned; "moss-grown ideas about family life")

INDIRECT (VIA unfashionable) -> fashionable, stylish -- (being or in accordance with current social fashions; "fashionable clothing"; "the fashionable side of town"; "a fashionable cafe")

Similarity of adj stick-in-the-mud

1 sense of stick-in-the-mud

Sense 1
fogyish, moss-grown, mossy, stick-in-the-mud (predicate), stodgy -- ((used pejoratively) out of fashion; old fashioned; "moss-grown ideas about family life")
       => unfashionable (vs. fashionable), unstylish -- (not in accord with or not following current fashion; "unfashionable clothes"; "melodrama of a now unfashionable kind")