Doubtful

Doubt"ful (?), a. 1. Not settled in opinion; undetermined; wavering; hesitating in belief; also used, metaphorically, of the body when its action is affected by such a state of mind; as, we are doubtful of a fact, or of the propriety of a measure.

Methinks I should know you, and know this man;
Yet I am doubtful.

With doubtful feet and wavering resolution.

2. Admitting of doubt; not obvious, clear, or certain; questionable; not decided; not easy to be defined, classed, or named; as, a doubtful case, hue, claim, title, species, and the like.

Beauty is but a vain and doubtful good.

Is it a great cruelty to expel from our abode the enemy of our peace, or even the doubtful friend [i. e., one as to whose sincerity there may be doubts]?

3. Characterized by ambiguity; dubious; as, a doubtful expression; a doubtful phrase.

4. Of uncertain issue or event.

We . . . have sustained one day in doubtful fight.

The strife between the two principles had been long, fierce, and doubtful.

5. Fearful; apprehensive; suspicious. [Obs.]

I am doubtful that you have been conjunct
And bosomed with her.

Syn. -- Wavering; vacillating; hesitating; undetermined; distrustful; dubious; uncertain; equivocal; ambiguous; problematical; questionable.