[まこと, makoto] (adv, n) (1) truth; reality; (2) sincerity; honesty; integrity; fidelity; (3) (arch) that's right (used when recalling forgotten information, suddenly changing the subject, etc.); (P) #1760
[きゅう, kyuu] (adj-na) (1) urgent; sudden; abrupt; (2) sharp; steep; precipitous; (3) rapid; swift; fast; (n) (4) emergency; crisis; (5) hurrying; haste; (6) (See 序破急) (in gagaku or noh) end of a song; (P) #3744
[とつぜん, totsuzen] (adj-na, adj-no, adv) abrupt; sudden; unexpected; all at once; (P) #4312
[ぎゃくてん, gyakuten] (n, vs, adj-no) (sudden) change; reversal; turn-around; coming from behind (baseball); (P) #4608
[ぐうぜん, guuzen] (adj-na, adj-no, n-adv, n) (by) chance; unexpectedly; suddenly; accident; fortuity; (P) #5780
[てん, ten] (adv, adv-to) (1) (uk) (on-mim) turning around (once); (2) suddenly; abruptly; (3) completely (wrapped in something); quickly (unwrapping something); (4) beautiful, round (eyes); (n) (5) (abbr) (See くるり棒) flail (for threshing grain) #6497
[ぼっぱつ, boppatsu] (n, vs) outbreak (e.g. war); outburst; sudden occurrence #6550
[とつじょ, totsujo] (adv) suddenly; all of a sudden; (P) #10024
[きゅうげき, kyuugeki] (adj-na, n) sudden; precipitous; radical; (P) #11144
[きゅうし, kyuushi] (n, vs) sudden death; (P) #14612
[おそう, osou] (v5u, vt) (1) to attack; to assail; to make an assault; to strike; to hunt down; (2) to succeed (someone in a post, role, etc.); (3) to make a sudden visit; (P) #14703
[こうとう, koutou] (n, vs) sudden price jump; steep price rise; (P) #18065
[きゅうせい, kyuusei] (n, vs) sudden death; (P) #19182
[karatto ; karatsu to] (adv, vs) (1) (on-mim) changing suddenly and completely; (2) crisp and dry (e.g. skies, weather, tempura, laundry, etc.)
[karari] (adv-to, adv) (1) (on-mim) clatter (noise made by hard objects coming in contact, e.g. a door flinging open); (2) (on-mim) bright and clear (e.g. sky); (3) (on-mim) nicely dry (e.g. laundry); crisp (e.g. tempura); (4) (on-mim) cheerful and open-hearted; (5) (on-mim) changing suddenly and completely; (6) (on-mim) completely forgetting something; (P)
[gakunto] (adv) (on-mim) suddenly; with a jerk
[gatatto] (adv) (1) (on-mim) with a clunk; with a clank; (2) the sound of a sudden decrease (in profits, vigor, etc.)
[garatto] (adv) (1) (on-mim) to burst open; to open suddenly (of a door); (2) to change completely; to do a 180
[garari] (adv, adv-to) (1) (on-mim) entirely; suddenly; completely; rudely; (n) (2) window louvre
[kokkuri ; kokuri] (n, vs, adv-to) (1) nodding; dozing off; (adv, adv-to) (2) (See ぽっくり) suddenly
[korotto] (adv) (1) (on-mim) sound of something small rolling once (often into a hole); (2) disappointing; (3) complete reversal of a situation; (4) curling up into the fetal position; going to sleep suddenly
[korori] (adv-to) (1) (on-mim) easily; effortlessly; suddenly; utterly; (2) changing completely; (n) (3) plink (sound of something light falling or rolling)
[gobotsu] (adv-to) gurgling down; being sucked into; caving in suddenly
[saatto] (n) (1) (See さっと) relatively quickly (esp. actions); (2) quite suddenly (esp. wind, rain, etc.)
[sutto (P); sutsu to ; su-tsu to ; suutto] (adv, vs) (1) (on-mim) (スーッと and すうっと are more emphatic) straight; quickly; directly; all of a sudden; (2) (on-mim) quietly; gently; softly; (vs) (3) to feel refreshed; to feel satisfied; (P)
[tsundere ; tsundere] (adj-f, n) (1) (See つんつん, でれでれ) being on the surface sharp and sarcastic (tsuntsun) but underneath lovestruck and fawning (deredere); characteristic of a gap between acted out actions and feelings in mind; (2) normally being sharp but at some prompt suddenly becoming lovestruck; hot-cold personality type
[dokokaratomonaku] (exp) suddenly (appears) out of nowhere
[dokohetomonaku] (exp) suddenly disappears somewhere
[dotto] (adv) (on-mim) suddenly
[どんでんがえし, dondengaeshi] (n) (sudden) complete reversal (of plot); unexpected twist (at end of story)
[nutto ; nuutto ; notto] (adv) (on-mim) suddenly; abruptly
[hatato] (adv) suddenly; sharply (to cast a glance, to make a sound)
[battari ; battan] (adv, adv-to) (1) (on-mim) with a clash; with a thud; with a bang; with a flop; plump; (2) (on-mim) unexpectedly (meeting someone); (3) (on-mim) suddenly (ending); abruptly (coming to a halt)
[batto] (adv) (on-mim) suddenly; in a flash; rapidly; nimbly; alertly
[patari] (adv) clink; sudden stop
[pachiri ; pachiri] (adv-to) (on-mim) quickly; suddenly
[pattari] (adv, adv-to) unexpectedly; suddenly; abruptly
[patto] (adv, vs) (on-mim) suddenly; in a flash; rapidly; nimbly; alertly; (P)
[hyoito] (adv) (on-mim) by chance; suddenly; accidentally; with agility
[hyokotto] (adv) suddenly; abruptly; impulsively
[hyokkori ; hyokkuri] (adv) all of a sudden; suddenly; by chance; unexpectedly
[pitatto] (adv, vs) (1) (on-mim) tightly; closely; (2) (on-mim) exactly; precisely; (3) (on-mim) suddenly (stopping)
[pitari] (adv-to, adv) (1) (on-mim) tightly; closely; (2) (on-mim) exactly; precisely; (3) (on-mim) suddenly (stopping)
[pittari] (adv, adv-to, vs) (1) (on-mim) tightly; closely; (2) (on-mim) exactly; precisely; (3) (on-mim) suddenly (stopping); (adv, adv-to, vs, adj-na) (4) (on-mim) perfectly (suited); ideally; (P)
[fuito] (adv) abruptly; suddenly; unexpectedly
[futtsuri ; puttsuri ; buttsuri ; futsuri] (adv, adv-to) (1) (on-mim) breaking off; snapping off; (2) (ふっつり, ぷっつり, ふつり only) (on-mim) suddenly stopping
[futto] (adv) (1) (on-mim) with a whiff; with a puff; (2) suddenly; abruptly; without warning
[furatto] (adv) (on-mim) aimlessly; by chance; accidentally; casually; suddenly; unexpectantly
[burun ; bururi] (adv-to, adv) (on-mim) with a vroom; with a sudden shaking
[puito] (adv) (on-mim) acting rudely and suddenly