suspicious

Definitions

Having or showing a cautious distrust of someone or something.

Giving the impression that something is wrong or illegal.

Feeling or showing doubt about the honesty or truthfulness of someone.

Examples

The detective found the man's behavior to be highly suspicious.

I received a suspicious email asking for my bank account details.

Synonyms

distrustful skeptical dubious wary leery cynical questioning

Antonyms

trusting unsuspecting gullible credulous confident naive convinced