King James Bible

DOUBTFUL, adjective

1. Dubious; not settled in opinion; undetermined; wavering; hesitating; applied to persons; as, we are doubtful of a fact, or of the propriety of a measure.

2. Dubious; ambiguous; not clear in its meaning; as a doubtful expression.

3. Admitting of doubt; not obvious, clear or certain; questionable; not decided; as a doubtful case; a doubtful proposition; it is doubtful what will be the event of the war.

4. Of uncertain issue.

We have sustained one day in doubtful fight.

5. Not secure; suspicious; as, we cast a doubtful eye.

6. Not confident; not without fear; indicating doubt.

With doubtful feet, and wavering resolution.

7. Not certain or defined; as a doubtful hue.