► 副詞
いきなり [いきなり] meaning: sudden rank: 1
☆ いきなり水風呂に入るのは危ない ⇨ It is dangerous to plunge into a cold bath without preparation
☆ 子供がいきなり道に飛び出した ⇨ A child suddenly ran out on the road (☛ Suddenly, in a dangerous manner)
☆ いきなり何を言うんだ？ ⇨ What are you talking about out of the blue? (☛ Suddenly, when you are not supposed to)
突然 [とつぜん] meaning: sudden rank: 1
☆ 突然爆発音がした ⇨ Suddenly I heard an explosion
☆ 突然雨が降り出した ⇨ Suddenly it started raining
はっと [(1)はっと] meaning: sudden rank: 2
☆ 携帯電話が無いことにはっと気がついた ⇨ I suddenly realized my cell phone was missing (☛ The sound of gasping)
ふと [(1)ふと] meaning: sudden rank: 2
☆ ふとラーメンが食べたいと思った ⇨ I suddenly felt like eating ramen (☛ Suddenly for no particular reason)
☆ ふと周りを見ると誰もいないことに気がついた ⇨ I just looked around and realized there was nobody around me (☛ Suddenly for no particular reason)
俄然 [がぜん] meaning: sudden rank: 3
☆ 相手の左目が塞がり試合は俄然彼に有利になった ⇨ The left eye of the opponent got swollen shut and the advantage in the fight suddenly shifted to him (☛ A situation, state, to change suddenly)
☆ ボーナスが出ると聞いて、俄然やる気が出てきた ⇨ I heard there will be a bonus, and now I am suddenly really motivated (☛ This is the original and correct meaning. “absolutely” is incorrect usage among youth)
突如 [(1)とつじょ] [liter] meaning: sudden rank: 3
☆ 突如爆発音がした ⇨ Suddenly I heard an explosion
はたと [(1)はたと] meaning: sudden rank: 3
☆ 私ははたと気が付いた ⇨ I suddenly realized. It suddenly dawned on me (☛ Suddenly become aware of something)
ばったり [(3)ばったり] meaning: sudden rank: 3
☆ 彼からの連絡がばったり途絶えた ⇨ Communications from his suddenly stopped (☛ Something to stop suddenly)
ぱたっと [(2)ぱたっと] meaning: sudden rank: 3
☆ 客足がぱたっと途絶えた ⇨ Customers suddenly disappeared (☛ Something to stop suddenly)
☆ 騒音がぱたっと止んだ ⇨ The noise suddenly stopped (☛ Something to stop suddenly)
ぱっと [(1)ぱっと] meaning: sudden rank: 3
☆ 彼女の顔がぱっと明るくなった ⇨ Suddenly her face lighted up
☆ 明かりがぱっと点いた ⇨ Suddenly the lights got turned on
ひょっこり [(4)ひょっこり] meaning: sudden rank: 3
☆ 彼がひょっこり訪ねてきた ⇨ He came visit us out of the blue (☛ Suddenly and unexpectedly)
ふっと [(1)ふっと] meaning: sudden rank: 3
☆ ふっと思いついた ⇨ Suddenly it dawned on me (☛ A variant of ふと)
ふらっと [(2)ふらっと] meaning: sudden rank: 3
☆ 彼がふらっと訪ねてきた ⇨ He came visit me unannounced
ひょいと [(1)ひょいと] meaning: sudden rank: 4
☆ 猫は突然ひょいと消えてしまった ⇨ The cat suddenly disappeared out of my sight (☛ Something to appear/disappear quietly and suddenly)
ひょこっと [(3)ひょこっと] meaning: sudden rank: 4
☆ 狐が穴からひょこっと顔を出した ⇨ A fox popped out its face out of the hole (☛ Something small to appear suddenly)
ひょっと [ひょっと] meaning: sudden rank: 4
☆ 彼がひょっと現れた ⇨ He suddenly showed up (☛ Something small and light to move swiftly)
ぽっくり [(3)ぽっくり] [coll] meaning: sudden rank: 4
☆ 私はぽっくり死にたい ⇨ I want to die suddenly (but painlessly) (☛ Die suddenly without suffering, often in sleep. Can be either old people, or healthy young people)
ぽっと [(1)ぽっと] meaning: sudden rank: 4
☆
矢庭に [やにわに] meaning: sudden rank: 4
☆ 彼は矢庭に叫び声を上げた ⇨ He suddenly screamed
► 成句
彗星 [すいせい] [彗星の如く、彗星の様に] meaning: sudden rank: 3
☆ 彗星の如く現れた新人 ⇨ A new talent who suddenly appeared like a comet, out of nowhere (☛ A sudden and sensational rise of someone)
藪から棒に [やぶからぼうに] meaning: sudden rank: 4
☆ 藪から棒に何の話だ？ ⇨ What are you talking about out of the blue? (☛ Literally means “a stick out of a bamboo forest”)
► 名詞
突発 [とっぱつ] [tech] meaning: sudden rank: 3
☆ 突発性難聴 ⇨ Sudden loss of hearing
► 形容動詞
急 [きゅう] meaning: sudden rank: 1
☆ 急にそんな事を言われてもどうしたら良いかわからない ⇨ You ask me that out of the blue and I just don’t what to do
☆ 急に雨が降り出した ⇨ Suddenly it started raining
出し抜け [だしぬけ] meaning: sudden rank: 3
☆ 彼は出し抜けに変な事を言い出した ⇨ He suddenly started talking about something weird (☛ Sudden, unexpected and strange)
唐突 [とうとつ] meaning: sudden rank: 3
☆ あいつ一体何を唐突に言い出したんだ？ ⇨ What in the world is he talking about all of sudden? (☛ Sudden and unexpected)
突発的 [とっぱつてき] [tech] meaning: sudden rank: 3
☆ 突発的に起こる病気 ⇨ An illness that happens suddenly, without any warning
不意 [(1)ふい] [liter] meaning: sudden rank: 3
☆ 不意に海が見たくなった ⇨ Suddenly I wanted to go see the sea (☛ Suddenly, without deep thought)
俄 [(1)にわか] [liter] meaning: sudden rank: 4
☆ 俄に雨が降り出した ⇨ Suddenly it started raining