i Register
In some senses, mistrustful is marked as obsolete. Watch for register when choosing this word.
adj
Having mistrust, lacking trust (in someone or something).
[…] I hold it cowardice To rest mistrustful where a noble heart Hath pawn’d an open hand in sign of love;
In the passage I met the nurse. She greeted me with a little smile; but I was mistrustful of professional cheerfulness that night.
Expressing or showing a lack of trust.
He lookt askew with his mistrustfull eyes, And nycely trode, as thornes lay in his way
At last, having held a document before her glasses for nearly five minutes, she presented it across the counter; accompanying the act by another inquisitive and mistrustful glance—it was for J. E.
Having a suspicion, imagining or supposing (that something undesirable is the case).
The mender of roads was now coming to himself, and was mistrustful of having made a mistake in his late demonstrations; but no.
Causing mistrust, suspicions, or forebodings.
Vp we gad, owt spredding oure sayls and make to the seaward: Al creeks mistrustful with Greekish countrye refusing.
[…] stonish’d as night-wanderers often are, Their light blown out in some mistrustful wood, Even so confounded in the dark she lay, Having lost the fair discovery of her way.