胡散臭い

• Reading: うさんくさい
• Romaji: usankusai
• Kanji breakdown: 胡散 (usan) — dubious, suspicious; 臭 (shuu/kusa) — smell, reek of
• Pronunciation: /ɯ.saɴ.kɯ.sa.i/

Meaning

Suspicious; shady; dubious; fishy. Describes an instinctive, gut-level distrust of a person, situation, or claim.

An i-adjective expressing a visceral sense that something is not right — not a reasoned suspicion based on evidence, but an intuitive fishiness. Commonly used for shady salespeople, implausible promises, or untrustworthy situations. Less formal than 疑わしい (which implies evidence-based suspicion); 胡散臭い is pure gut feeling.

Examples

1. その訪問販売員の話は胡散臭くて、ドアを開けるのも嫌だった。 The door-to-door salesman's pitch was so fishy that I did not even want to open the door.
2. 絶対に儲かるという言葉ほど胡散臭いものはない。 Nothing is as suspicious as the phrase 'guaranteed to make money'.
3. 彼の態度がどうも胡散臭いので、重要な仕事は任せられない。 Something about his attitude strikes me as distinctly shady, so I cannot entrust him with important work.

Usage Guide

Context: commerce, interpersonal, crime, daily life

Tone: distrustful

Origin & History

From 胡散 (usan — dubious, suspicious) + 臭い (kusai — smelling of, reeking of). 胡散 has uncertain origins, possibly from Chinese 糊散 (unclear, scattered). The suffix 臭い adds the sense of something that reeks of suspicion.

Cultural Context

Era: Modern

Generation: All ages

Social background: General