noun

the feeling that someone or something cannot be relied upon.

the public’s distrust of politicians

mistrust,suspicion,wariness,chariness,lack of trust,lack of confidence,lack of faith,scepticism,doubt,doubtfulness,dubiety,cynicism,misgivings,questioning,qualms,disbelief,unbelief,incredulity,incredulousness,discredit,leeriness

verb

doubt the honesty or reliability of; regard with suspicion.

speculation remained that the Army distrusted the peace process

mistrust,be suspicious of,be wary/chary of,regard with suspicion,suspect,look askance at,have no confidence/faith in,be sceptical of,have doubts about,doubt,be unsure of/about,be unconvinced about,have misgivings about,wonder about,question,disbelieve (in),not believe,discredit,discount,be incredulous of,be leery of,smell a rat