無意識(むいしき)に

むいしきに
adverb
unconsciously, involuntarily
1. unconsciously, without thinking, involuntarily
Describes doing something without deliberate awareness or intention. The action happens automatically or out of habit.
無意識(むいしき)に口(くち)ずさんでいた。
I was humming without realizing it.
彼(かれ)は無意識(むいしき)に髪(かみ)を触(さわ)る癖(くせ)がある。
He has a habit of touching his hair without thinking.
緊張(きんちょう)すると無意識(むいしき)に足(あし)を揺(ゆ)らしてしまう。
When I get nervous, I involuntarily shake my leg.

Describes actions performed without the person being aware of doing them. The underlying noun 無意識(むいしき) means 'the unconscious' or 'unconsciousness,' and can also be used as a の-adjective.

Common collocations

Similar words

  • 思(おも)わず: involuntarily, unintentionally — emphasizes a spontaneous reaction to a stimulus
  • 何気(なにげ)なく: casually, without particular intent — lighter; the person may be vaguely aware but not focused
  • 知(し)らず知(し)らずのうちに: without knowing it — more literary; emphasizes gradual, unnoticed change

Related Words

Compare: 思(おも)わず (involuntarily, unintentionally)
Compare: 何気(なにげ)なく (casually, without particular intent)
Compare: 反射的(はんしゃてき) (reflexive)
general
Added 2026.3.27 14:29 · Revised 2026.9.2 13:01
19500/19892_muishikini