Antonyms of adj longstanding

1 sense of longstanding

Sense 1
longstanding -- (having existed for a long time; "a longstanding friendship"; "the longstanding conflict")

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 longstanding

1 sense of longstanding

Sense 1
longstanding -- (having existed for a long time; "a longstanding friendship"; "the longstanding conflict")
       => 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")