Copyright © 2026 Kotomora. All Rights Reserved.
任す (まかす, makasu) Japanese meaning: entrust | Kotomora
Common word› JLPT N1 › Freq. Frequency Top 20,000 Conjugation 任す · godan verb (-su)
Form Positive Negative Dictionary 任まか す 任まか さない Polite 任まか します 任まか しません Past polite 任まか しました 任まか しませんでした Past 任まか した 任まか さなかった Te-form 任まか して 任まか さないで Desire 任まか したい 任まか したくない Potential 任まか せる 任まか せない Passive 任まか される 任まか されない Causative 任まか させる 任まか させない Causative passive 任まか させられる 任まか させられない Volitional 任まか そう Polite volitional 任まか しましょう Imperative 任まか せ 任まか すな Conditional 任まか せば 任まか さなければ Tara conditional 任まか したら 任まか さなかったら
Report an issue with this page
I entrusted this task to him.
Detailed decisions are left to the on-site leader.
Usage patterns 〈 人ひと 〉 に 〈 事こと 〉 を 任まか す to leave a matter/task to someone
I'll leave the new job to him.
〈 事こと 〉 を 運うん に 任まか す to leave something to fate or chance
I decided to leave the outcome to chance.
〈 人ひと 〉 に 〈 事こと 〉 を 任まか される to be entrusted with a task by someone
He was entrusted with managing the project.
Expressions まかしとき leave it to me; count on me Kanji 任 responsibility, duty, term 委 committee, entrust to, leave to Related words 任せる is the common, everyday verb for entrusting something to someone, while 任す is a slightly more formal or literary variant often seen in passive forms like 任される.
委ねる is a more formal, literary word for handing over full responsibility or decision-making, while 任す is a plainer variant of 任せる with a similar but slightly less weighty feel.
託す emphasizes entrusting a specific hope, message, or mission to someone, whereas 任す more broadly means leaving a matter or task in someone's hands.
Don't confuse with 任じる looks and sounds similar to 任す but means to appoint someone (or oneself) to a post, not to entrust a task.
任せ is the noun/suffix form used in compounds like 人任せ, while 任す is a colloquial verb variant of 任せる meaning 'to entrust'.
Written forms 任まか す Usage 73%
Standard kanji spelling; common in news and formal writing.
まかす Usage 26%
委まか す Usage 1%
rarely-used kanji form
Rarely used kanji form; 任す is overwhelmingly preferred.
Etymology Derived from classical verb 任す (makasu). The kanji 任 carries the meaning of 'entrust' or 'duty'.