Translation guide
The English word "shady" can describe literal shade, suspicious character or behavior, and questionable reliability. This guide covers natural Japanese expressions for each meaning.
Describing a person, business, or deal that seems untrustworthy, possibly illegal or unethical.
The most common and versatile word for 'shady' in the sense of suspicious, dubious, or questionable. Can describe people, situations, or things.
That person seems a bit shady.
I got involved in a shady deal.
Stronger than 怪しい, implies something smells fishy or is clearly dubious. Often used for people or offers that seem too good to be true.
I thought that story sounded shady.
Implies indecency or immorality, often used for shady businesses like adult entertainment or dubious products.
a street lined with shady shops
Literally 'black', but can mean shady in the sense of illegal or underhanded, often in compounds like 黒い噂 (dark rumors).
That company is always surrounded by shady rumors.
Describing something that may not work properly, is of low quality, or is unreliable, like a website or product.
Again the go-to word; can also mean 'dubious' in terms of reliability or authenticity.
This site looks shady, so you shouldn't enter your credit card info.
Literally 'cannot be trusted', a straightforward way to say something is unreliable or shady.
That source is shady (unreliable).
Describing a place sheltered from direct sunlight, like a garden or street.
The standard adjective meaning 'shady' in the literal sense of being in the shade.
I rested on a shady bench.
Specifically 'tree-shaded', often used for pleasant shady spots under trees.
Take a walk along a shady path.
Means 'not exposed to sunlight', can describe a shady area or a room that doesn't get sun.
Describing something that casts shade, like a tree or structure.
怪しい is the most general and neutral for 'suspicious'. 胡散臭い is more colloquial and implies a gut feeling of distrust. いかがわしい is more formal and often carries a nuance of indecency or immorality, used for businesses or products.
When you mean 'suspicious', never use 日陰の. It only means 'shaded from sunlight'. Use 怪しい or similar words for the figurative sense.
He's a shady character.
I found a shady spot under the tree.
Also works for things that seem unreliable or fake.
I won't download that app because it looks shady.
This room is shady (doesn't get sun), so it's a bit dark.