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suspicious

 
 
/səˈspɪʃəs/ adjective

Definition

WRONG/BAD making you feel that something is wrong or that something bad or illegal is happening: suspicious behaviour/circumstances I called airport security after noticing a suspicious package.
NOT TRUST not trusting someone: Many of them remain suspicious of journalists.
suspiciously adverb She's been acting very suspiciously lately.
(Definition of suspicious adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

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