Translation guide
The English word "senseless" can describe a lack of physical sensation, a lack of meaning or purpose, or foolishness. This guide helps learners choose the right Japanese expression for each nuance.
To describe a person or body part that cannot feel, or a state of unconsciousness.
Literally 'no sensation'. Used for numbness or lack of physical feeling, often due to cold, anesthesia, or medical conditions.
寒さで指が無感覚になった。
My fingers became senseless from the cold.
Means 'unconscious' or 'in a coma'. Used when someone is knocked out or loses consciousness.
彼は事故で意識不明の状態だ。
He is senseless after the accident.
A more colloquial phrase meaning 'has no sensation'. Can be used for temporary numbness.
麻酔で足の感覚がない。
My leg is senseless from the anesthesia.
To describe an action, event, or situation that seems to have no reason or value.
The most direct equivalent for 'meaningless' or 'pointless'. Used for actions, words, or events that lack significance.
彼の死は無意味だった。
His death was senseless.
そんな無意味な議論はやめよう。
Let's stop this senseless argument.
Means 'futile' or 'wasteful'. Emphasizes the lack of productive outcome. Often used for efforts or actions.
無駄な抵抗はやめろ。
Stop your senseless resistance.
Literally 'don't understand the reason'. Used when something is incomprehensible or absurd, often implying senselessness.
彼の行動はわけがわからない。
His actions are senseless.
To describe a person or action that is stupid or irrational.
Means 'foolish' or 'stupid'. Can be used for senseless behavior or decisions.
愚かな間違いをした。
I made a senseless mistake.
Colloquial for 'absurd' or 'ridiculous'. Often used in spoken Japanese.
ばかげた考えだ。
That's a senseless idea.
To describe an act of violence that seems random or without motive.
Refers to a random attacker or indiscriminate violence, like a 'phantom killer'. Used for senseless street crimes.
通り魔的な殺人事件が起きた。
A senseless murder occurred.
Literally 'violence without reason'. A more literal way to describe senseless violence.
その事件は理由なき暴力だった。
The incident was senseless violence.
Do not directly translate 'senseless' as 感覚がない in all contexts. For abstract meanings like 'pointless', use 無意味 or 無駄.
無意味 emphasizes lack of meaning or significance, while 無駄 emphasizes futility or waste. 無意味な議論 (a meaningless argument) vs 無駄な努力 (wasted effort).