Part of speech:
Done, happening, appearing, etc. every half year or twice a year
Of, characteristic of, or depending on the season or seasons
Find another word for semiannual. In this page you can discover 7 synonyms, antonyms, idiomatic expressions, and related words for semiannual, like: , half-yearly, biannual, every six months, semiyearly, seasonal and biyearly.