tautological vs tautologic

tautological and tautologic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
tautological	No	Yes	No	No
tautologic	No	Yes	No	No

As adjectives, tautological and tautologic are synonyms defined as:

tautological and tautologic: repetition of same and identical sense with different and non-identical words

Other synonyms of tautological include pleonastic, redundant.

tautological (adjective)	tautologic (adjective)
repetition of same and identical sense with different and non-identical words	repetition of same and identical sense with different and non-identical words