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English definition of “suspicious”

suspicious

adjective  /səˈspɪʃ·əs/ us  

suspicious adjective (FEELING DOUBT)

feeling doubt or a lack of trust: Many of the workers were suspicious of the labor agreement.

suspicious adjective (FEELING SOMEONE IS GUILTY )

making you feel that something illegal is happening or that something is wrong: Last night’s fire at the bank is being treated as suspicious. Neighbors were asked if they had noticed anything suspicious.
(Definition of suspicious from the Cambridge Academic Content Dictionary © Cambridge University Press)
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