Antonyms of adj nightlong

1 sense of nightlong

Sense 1
nightlong, all-night, overnight -- (lasting, open, or operating through the whole night; "a nightlong vigil"; "an all-night drugstore"; "an overnight trip")

INDIRECT (VIA long) -> short -- (primarily temporal sense; indicating or being or seeming to be limited in duration; "a short life"; "a short flight"; "a short holiday"; "a short story"; "only a few short months")

Similarity of adj nightlong

1 sense of nightlong

Sense 1
nightlong, all-night, overnight -- (lasting, open, or operating through the whole night; "a nightlong vigil"; "an all-night drugstore"; "an overnight trip")
       => long (vs. short) -- (primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified; "a long life"; "a long boring speech"; "a long time"; "a long friendship"; "a long game"; "long ago"; "an hour long")