Antonyms of adj trendy

1 sense of trendy

Sense 1
trendy, voguish -- (in accord with the latest fad; "trendy ideas"; "trendy clothes"; "voguish terminology")

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 trendy

1 sense of trendy

Sense 1
trendy, voguish -- (in accord with the latest fad; "trendy ideas"; "trendy clothes"; "voguish terminology")
       => fashionable (vs. unfashionable), stylish -- (being or in accordance with current social fashions; "fashionable clothing"; "the fashionable side of town"; "a fashionable cafe")