unbendable vs steadfast

unbendable and steadfast both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unbendable	No	Yes	No	No
steadfast	No	Yes	No	No

As adjectives, unbendable and steadfast are synonyms defined as:

unbendable and steadfast: marked by firm determination or resolution; not shakable

Other synonyms of unbendable include firm, steady, stiff, unfaltering, unshakable, unwavering.

unbendable (adjective)	steadfast (adjective)
marked by firm determination or resolution; not shakable	firm and dependable especially in loyalty
	marked by firm determination or resolution; not shakable