Indubitable(a.) Not dubitable or doubtful; too evident to admit of doubt; unquestionable; evident; apparently certain; as, an indubitable conclusion.
Indubitable(n.) That which is indubitable.
Indubitableness(n.) The state or quality of being indubitable.
Indubitably(adv.) Undoubtedly; unquestionably; in a manner to remove all doubt.
Indubitate(a.) Not questioned or doubtful; evident; certain.
Indubitate(v. t.) To bring into doubt; to cause to be doubted.
Words within indubitable