不ふ用よう意い

ふ

よ

う

い

Common wordFreq.FrequencyTop 50,000

Meanings

na-adjective, noun

unprepared; off guard

Describes being without preparation or readiness, often in a situation where one is caught off guard.

敵てきは不ふ用よう意いなところを突つかれた。
The enemy was struck while off guard.
不ふ用よう意いなまま本ほん番ばんに臨のぞむのは危き険けんだ。
It is risky to go into the real thing unprepared.

na-adjective, noun

careless; imprudent; indiscreet; inadvertent

Used for actions, remarks, or handling of things done without enough caution or forethought; common in 不用意な発言 and 不用意に.

彼かれの不ふ用よう意いな発はつ言げんが大おおきな問もん題だいになった。
His careless remark became a major problem.
不ふ用よう意いに個こ人じん情じょう報ほうを書かき込こまないでください。
Please do not enter personal information carelessly.

See all 20 example sentences ›

Usage patterns

不ふ用よう意いな発はつ言げんをするto make a careless/indiscreet remark
彼かれは会かい議ぎで不ふ用よう意いな発はつ言げんをして、みんなを驚おどろかせた。
He made a careless remark at the meeting and surprised everyone.
不ふ用よう意いに〈動どう詞し〉to do something carelessly, without due caution
不ふ用よう意いにドアを開あけてはいけない。
You shouldn't carelessly open the door.
不ふ用よう意いな行こう動どうをとるto take careless or imprudent action
不ふ用よう意いな行こう動どうが事じ故こにつながることもある。
Careless actions can sometimes lead to accidents.
不ふ用よう意いなところを突つかれるto be caught off guard, attacked at an unguarded moment
相あい手ての不ふ用よう意いなところを突ついて逆ぎゃく転てんした。
He took advantage of his opponent's unguarded moment to turn the game around.

Kanji

不negative, non-, bad
用utilize, business, service
意idea, mind, heart

Related words· 6

不ふ注ちゅう意いN1sense 2
不注意 emphasizes a lapse in attention or carelessness in general, while 不用意 more broadly covers lack of preparation or an indiscreet remark/action.
軽けい率そつN1sense 2
軽率 stresses acting too hastily or thoughtlessly, whereas 不用意 stresses insufficient caution or readiness rather than haste.
油ゆ断だんN2sense 1
油断 refers to the state of letting one's guard down, while 不用意 can describe that state or an actual careless remark/action.
うかつ sense 2
迂闊 describes being inattentive or dim to a situation, close to 不用意 but with a stronger sense of obliviousness rather than lack of preparation.

Show 2 more

軽けい々けいN1
不用意 emphasizes a lack of preparation or caution leading to a slip, while 軽々 stresses acting frivolously or without due seriousness.
むやみN1
不用意 means 'careless/unprepared', emphasizing a lack of caution or readiness, whereas むやみ emphasizes acting without reason or restraint.

Opposites

用よう意いN4sense 1
用意 means being prepared or ready, the direct positive counterpart to 不用意's sense of being unprepared.
慎しん重ちょうN3sense 2
慎重 means careful and prudent, the opposite of 不用意's sense of careless or indiscreet behavior.

Don't confuse with

不ふ用よう
不用 means unnecessary or useless, while 不用意 means careless or unprepared; the similar spelling often causes learners to mix them up.
不ふ注ちゅう意いN1
不用意 means being unprepared or imprudent in one's words or actions, while 不注意 specifically means carelessness or inattention that leads to mistakes or accidents.

Built from

不ふ+用よう意い

Etymology

A Sino-Japanese compound formed from 不, expressing negation, and 用意, 'preparation' or 'care'; the spelling transparently conveys a lack of preparation or caution.