[やす, yasu] (pref, suf) (1) cheap; (pref) (2) (See 安請け合い) rash; thoughtless; careless; indiscreet; frivolous #1580
[ukkari] (adv, n, vs) carelessly; thoughtlessly; inadvertently; (P) #18849
[sosokkashii] (adj-i) careless; thoughtless; (P)
[hoihoi] (adv) (1) Shoo! (used to drive away people or animals); without considering the pros and (particularly) the cons; thoughtlessly; readily; blithely; willingly; (vs) (2) to pamper; to spoil
[うかつ, ukatsu] (adj-na) (uk) careless; stupid; thoughtless; heedless; unobservant; inadvertant; incautious
[うかつせんばん, ukatsusenban] (adj-na) very careless; quite thoughtless
[けいけい, keikei] (adv) (usu. as 軽々に) indiscreetly; thoughtlessly; carelessly; frivolously
[かるがるしい, karugarushii] (adj-i) indiscreet; thoughtless; careless; frivolous
[けいちょうふはく, keichoufuhaku] (adj-na, n) frivolous and thoughtless
[けいそう, keisou] (adj-na, n) thoughtless; flighty
[しりがかるい, shirigakarui] (exp, adj-i) (1) fast; brisk; (2) careless; thoughtless; impudent; rash; (3) (of a woman) wanton; promiscuous
[こころない, kokoronai] (adj-i) thoughtless; inconsiderate; tasteless; cruel
[あさはか, asahaka] (adj-na, n) shallow; superficial; frivolous; thoughtless; foolish; silly; (P)
[せんりょ, senryo] (n) imprudence; indiscretion; thoughtlessness
[そこつ, sokotsu] (adj-na, n) careless; thoughtless; rash; rude; at fault
[そこつもの, sokotsumono] (n) careless person; thoughtless person
[とんてき, tonteki] (n) (arch) thoughtlessness; thoughtless person
[としがいもない, toshigaimonai] (exp, adj-i) unbecoming; unsuitable; disgraceful; wrong for one's age; unworthy of one's years; thoughtless for one's age
[のうてんき(能天気;能転気;脳天気);ノーてんき(ノー天気), noutenki ( nou tenki ; nou ten ki ; noutenki ); no-tenki ( no-tenki )] (adj-na) optimistic; thoughtless; insolent
[ひそうせんぱく, hisousenpaku] (n, adj-na) shallow and unwise; superficial and thoughtless
[ひじょうしき, hijoushiki] (n) (1) lack of common sense; thoughtlessness; senselessness; irrationality; absurdity; (adj-na) (2) thoughtless; senseless; unreasonable; absurd; preposterous; aberrant; (P)
[ふけんしき, fukenshiki] (adj-na, n) thoughtless; indiscreet; lacking in common sense; rashness; betraying one's lack of judgment (judgement); absurd; undignified; compromising; disgraceful
[ふしょぞんもの, fushozonmono] (n) thoughtless person
[ふちゅうい, fuchuui] (adj-na, n) carelessness; inattention; thoughtlessness; (P)
[ふりょうけん, furyouken] (adj-na, n) indiscretion; bad idea; thoughtlessness; indiscreetness
[うかり, ukari] (adv) (uk) (arch) (See うっかり) carelessly; thoughtlessly; inadvertently
[むかんがえ, mukangae] (adj-na, n) thoughtless; heedless; rash
[むしりょ, mushiryo] (n) thoughtlessness; indiscretion
[むふんべつ, mufunbetsu] (adj-na, n) thoughtlessness; indiscretion
[むぼう, mubou] (adj-na, n) reckless; thoughtless; recklessness; (P)
[めった, metta] (adj-na, n) (uk) thoughtless; reckless; seldom (neg. verb); careless; (P)
[ぼうげん;もうげん(妄言), bougen ; mougen ( mougen )] (n) reckless remark; rash remark; abusive language; thoughtless words
[もうげんたしゃ;ぼうげんたしゃ, mougentasha ; bougentasha] (exp) Kindly excuse my reckless remarks; Please excuse my thoughtless words. (used deferentially, in a letter, etc.)
[やぼ, yabo] (n) (1) unrefinedness; uncouthness; boorishness; (adj-na) (2) tasteless; boorish; unrefined; thoughtless; dumb; (P)
[やたら, yatara] (adj-na, adv, adv-to) (uk) at random; thoughtlessly; recklessly; excessively
[なまじ, namaji] (adv) (1) (uk) (See 憖い・1) thoughtlessly; rashly; unwisely; half-heartedly; (adj-na) (2) (See 憖い・2) halfway; half-done; incomplete
[なまじい, namajii] (adv) (1) (uk) (See 憖・1) thoughtlessly; rashly; unwisely; half-heartedly; (adj-na) (2) (See 憖・2) halfway; half-done; incomplete
[なまじっか, namajikka] (adv) (1) (uk) thoughtlessly; rashly; unwisely; half-heartedly; (adj-na) (2) halfway; half-done; incomplete