corny vs platitudinal

corny and platitudinal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
corny	No	Yes	No	No
platitudinal	No	Yes	No	No

As adjectives, corny and platitudinal are synonyms defined as:

corny and platitudinal: dull and tiresome but with pretensions of significance or originality

Other synonyms of corny include bromidic, platitudinous.

corny (adjective)	platitudinal (adjective)
dull and tiresome but with pretensions of significance or originality	dull and tiresome but with pretensions of significance or originality