sus·pi·cious
səˈspiSHəs/
adjective
səˈspiSHəs/
adjective
having or showing a cautious distrust of someone or something.
"he was suspicious of her motives"
synonyms: doubtful, unsure, dubious, wary, chary, skeptical, distrustful, mistrustful,disbelieving, cynical
"she gave him a suspicious look"
causing one to have the idea or impression that something or someone is of questionable, dishonest, or dangerous character or condition.
"they are not treating the fire as suspicious"
synonyms: disreputable, unsavory, dubious, suspect, dishonest-looking, funny-looking, slippery; More
having the belief or impression that someone is involved in an illegal or dishonest activity.
"police were called when staff became suspicious"