彼、無意識に顔を殴ってしまった

N5 彼 kare he N3 無 mu nothing, absence, nonexistence N3 意識 ishiki consciousness, awareness, perception N5 顔 kao face (body part) N3 しまった shimatta darn, too bad, I messed up

N3 彼 hi / kare, kano, ka.no he, that, the N3 無 mu, bu / na.i nothingness, none, ain't N4 意 i idea, mind, heart N3 識 shiki / shi.ru, shiru.su discriminating, know, write N3 顔 gan / kao face, expression, visage N1 殴 ou / nagu.ru assault, hit, beat

N4 〜てしまう te shimau Indicates completed action with nuance of regret, surprise, or unexpected result, attaches to the te-form verb N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜を o Marks the direct object of an action, appears before the verb, shows what receives the action N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action