Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun perennial

1 sense of perennial

Sense 1
perennial -- ((botany) a plant lasting for three seasons or more)
       => plant, flora, plant life -- ((botany) a living organism lacking the power of locomotion)

Antonyms of adj perennial

3 senses of perennial

Sense 1
perennial (vs. annual) (vs. biennial) -- (lasting three seasons or more; "the common buttercup is a popular perennial plant")

annual (vs. biennial) (vs. perennial), one-year -- (completing its life cycle within a year; "a border of annual flowering plants")
biennial (vs. perennial) (vs. annual), two-year -- (having a life cycle lasting two seasons; "a biennial life cycle"; "parsnips and carrots are biennial plants often grown as annuals")

Sense 2
perennial -- (lasting an indefinitely long time; suggesting self-renewal; "perennial happiness")

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")

Sense 3
perennial, recurrent, repeated -- (recurring again and again; "perennial efforts to stipulate the requirements")

INDIRECT (VIA continual) -> sporadic -- (recurring in scattered and irregular or unpredictable instances; "a city subjected to sporadic bombing raids")

Similarity of adj perennial

3 senses of perennial

Sense 1
perennial (vs. annual) (vs. biennial) -- (lasting three seasons or more; "the common buttercup is a popular perennial plant")

Sense 2
perennial -- (lasting an indefinitely long time; suggesting self-renewal; "perennial happiness")
       => 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")

Sense 3
perennial, recurrent, repeated -- (recurring again and again; "perennial efforts to stipulate the requirements")
       => continual (vs. sporadic) -- (occurring without interruption; chiefly restricted to what recurs regularly or frequently in a prolonged and closely spaced series; "the continual banging of the shutters")