Answer: suspecting

AnswerCrossword Clue
suspectingDoubt the genuineness or truth of
suspectingBelieve or feel that (someone) is guilty of an illegal, dishonest, or unpleasant act, without certain proof
suspectingSUSPECT, to mistrust (to distrust (to lose belief in))
suspectingHave an idea or impression of the existence, presence, or truth of (something) without certain proof