pliant vs elastic

pliant is not a noun while elastic is a noun.

Word	Noun	Adjective	Verb	Adverb
pliant	No	Yes	No	No
elastic	Yes	Yes	No	No

As adjectives, pliant and elastic are synonyms defined as:

Other synonyms of pliant include flexible, pliable.

pliant (noun)	elastic (noun)
	a fabric made of yarns containing an elastic material
	a narrow band of elastic rubber used to hold things (such as papers) together

pliant (adjective)	elastic (adjective)
able to adjust readily to different conditions	capable of resuming original shape after stretching or compression; springy
capable of being bent or flexed or twisted without breaking	able to adjust readily to different conditions
capable of being shaped or bent or drawn out
capable of being influenced or formed