triennial

3年続く

triennial の類語

birthday, anniversary, biennial, wedding anniversary, jubilee, centennial, bicentennial, daily, annual, plant, tercentenary, weekly, monthly, name day, quarterly, yearly, perennial, millennium, periodic, sesquicentennial, menstrual, cutting, periodical, tercentennial, weed, natal day, biannual, secular, vegetable, holy days, hourly, semiannual, annual holiday, fungus, evergreen, seed plant, centenary, silver wedding anniversary, golden wedding anniversary, commemoration, leap year, momentary, quincentennial, aquatic plant, flowering plant, vascular plant, fortnightly, seedling, diurnal, biweekly, quadrennial, exotic, decennial, ephemeral, semicentennial, quatercentennial, bimillennium, amphibian, diamond jubilee, bimonthly

triennial の反意語

aperiodic, annual, perennial

triennial の言い換えを探すには

triennial（3年続く）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。