Biennial
/baɪˈɛn.i.əl/
Antonyms for "biennial" (20 found)
Adjective(12 words)
annualannual eventannual herbannual patternannual patternsannual plantannual publicationannual review yearperennialquadrennialtriennialvicennial
Noun(8 words)
annual climate patternannual meetingannual productionannual yieldsannualsperennialssemiannualtriennials