Translation guide
A smirk is a smile that shows smugness, self-satisfaction, or contempt. Japanese has several expressions to convey this, ranging from direct descriptions to onomatopoeia and idiomatic phrases.
To describe a smile that expresses smugness, self-satisfaction, or a sense of superiority.
To describe a smile that shows contempt, mockery, or scorn.
To describe a smirk that suggests secret knowledge or cunning.
にやにや is a continuous, broad smirk; にんまり is a quiet, satisfied smirk often with closed mouth; にやり is a brief, sharp smirk. All are onomatopoeic and casual.
彼はにやにやしている。
He is smirking (continuously).
彼はにんまりした。
He smirked (to himself).
彼はにやりとした。
He gave a quick smirk.
There is no single Japanese noun that perfectly matches 'smirk'. Instead, use onomatopoeia with 笑う or descriptive phrases like 薄笑い or 嘲笑. Using 笑み alone loses the negative connotation.
An onomatopoeic adverb often used with 笑う or する to describe a broad, self-satisfied grin. Very common in casual speech.
彼は一人でにやにや笑っていた。
He was smirking to himself.
何をにやにやしてるの？
What are you smirking about?
An onomatopoeia for a brief, meaningful smirk, often used with 笑う or とする. Implies a quick, knowing smile.
彼はにやりと笑った。
He smirked.
A faint, often scornful smile. More literary or descriptive than にやにや.
彼の口元に薄笑いが浮かんだ。
A smirk appeared on his lips.
A triumphant smirk, literally 'a smile of having done it to someone'. Used when someone has successfully outwitted another.
彼はしてやったりの笑みを浮かべた。
He wore a smirk of triumph.
A scornful laugh or smile; mockery. Can be used as a noun or with する.
彼は私の失敗を嘲笑した。
He smirked at my failure.
A sneering or derisive laugh/smile. Slightly less formal than 嘲笑.
彼女はせせら笑いを浮かべた。
She gave a smirk of derision.
A smile as if making fun of someone. A descriptive phrase for a mocking smirk.
彼は馬鹿にしたような笑みを浮かべていた。
He had a mocking smirk on his face.
An onomatopoeia for a satisfied, often secretive smirk. Implies quiet self-satisfaction.
彼はにんまりと笑った。
He smirked slyly.
To smirk to oneself in satisfaction, often secretly. A verb that conveys quiet gloating.
彼は心の中でほくそ笑んだ。
He smirked inwardly.
A meaningful, suggestive smile. Often used when someone knows something others don't.
彼女は意味ありげな笑みを浮かべた。
She gave a knowing smirk.