Her self-distrust kept her from applying for the promotion, even though she was more qualified than many of her colleagues.

She eyed the package distrustingly, unwilling to accept anything from an unknown sender.

She greeted the newcomer with distrustless warmth that put him at ease.

She looked at the stranger distrustfully before deciding whether to accept his offer.

The old steward distrusteth the envoy, suspecting his flattery conceals a bribe.

Though I have proven myself trustworthy, thou still distrustest me.