uncompromising vs sturdy

uncompromising and sturdy both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uncompromising	No	Yes	No	No
sturdy	No	Yes	No	No

As adjectives, uncompromising and sturdy are synonyms defined as:

Other synonyms of uncompromising include inflexible.

uncompromising (adjective)	sturdy (adjective)
not making concessions	not making concessions
	having rugged physical strength; inured to fatigue or hardships
	substantially made or constructed