[しげき, shigeki] (n, vs) stimulus; impetus; incentive; encouragement; motivation; provocation; (P) #6778
[いきおい, ikioi] (adv, n) (1) force; vigor; vigour; energy; spirit; life; (2) influence; authority; power; might; (3) impetus; momentum; course (of events); (n-adv) (4) naturally; necessarily; (P) #9429
[ちょうし, choushi] (n) (1) tune; tone; key; pitch; time; rhythm; (2) vein; mood; way; manner; style; knack; (3) condition; state of health; (4) impetus; spur of the moment; strain; (5) trend; (P) #10701
[しょうどう, shoudou] (n, vs) impulse; impetus; urge; (P) #17370
[kikakke] (n) (variant form of 切っ掛け) (See きっかけ) chance; start; cue; excuse; motive; impetus; occasion
[はやる, hayaru] (v5r) to be in high spirits; to be impatient; to be hotblooded; to be rash; to be impetuous
[うんどうりょく, undouryoku] (n) impetus
[きどうりょく, kidouryoku] (n) motive power; impetus
[こうじん, koujin] (n) poweful deity (sometimes impetuous); miraculous spirit
[わかげ, wakage] (n) youthful impetuosity; youthful vitality
[しょうそうけっき, shousoukekki] (n, adj-no) young and hot-blooded (impetuous)
[きっかけ, kikkake] (n) (uk) chance; start; cue; excuse; motive; impetus; occasion; (P)
[あおりをくう, aoriwokuu] (exp, v5u) to suffer a blast or indirect blow; to be subject to the surplus force of an impetus
[たんぺいきゅう, tanpeikyuu] (adj-na, n) impetuousness
[ふんじん, funjin] (n) impetuous dash forward
[よせい, yosei] (n) surplus power; momentum; impetus; inertia