Bible Dictionaries
Indubitable

Webster's Dictionary

(1):

(a.) Not dubitable or doubtful; too evident to admit of doubt; unquestionable; evident; apparently certain; as, an indubitable conclusion.

(2):

(n.) That which is indubitable.

Bibliography Information
Webster, Noah. Entry for 'Indubitable'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​i/indubitable.html. 1828.