mistrust
n.the feeling that you cannot trust someone or something. You feel this when you think someone might be dishonest or that a situation is not safe.
n.a lack of trust or confidence in someone or something. Often arises from a suspicion of deceit or a history of unreliability.
“There is a deep mistrust between the two neighbors.”
“The public's mistrust of the new policy grew after several officials failed to explain the budget cuts.”
“Years of broken promises and inconsistent communication have fostered a climate of mutual mistrust that now hampers any attempt at diplomatic reconciliation.”
Often takes the preposition 'of' before the object of suspicion.
While 'for' is occasionally seen, 'of' is the standard and more common preposition used with the noun 'mistrust'.
“Sixty-four percent said they mistrusted their tap water.”
From Middle English mistrust; equivalent to mis- + trust.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.