fibrous vs unchewable

fibrous and unchewable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
fibrous	No	Yes	No	No
unchewable	No	Yes	No	No

As adjectives, fibrous and unchewable are synonyms defined as:

fibrous and unchewable: (of meat) full of sinews; especially impossible to chew

Other synonyms of fibrous include sinewy, stringy.

fibrous (adjective)	unchewable (adjective)
(of meat) full of sinews; especially impossible to chew	(of meat) full of sinews; especially impossible to chew
having or resembling fibers especially fibers used in making cordage such as those of jute