tolerable vs adequate

tolerable and adequate both are adjectives.

Word	Noun	Adjective	Verb	Adverb
tolerable	No	Yes	No	No
adequate	No	Yes	No	No

As adjectives, tolerable and adequate are synonyms defined as:

Other synonyms of tolerable include fair to middling, passable.

tolerable (adjective)	adequate (adjective)
capable of being borne or endured	having the requisite qualities or resources to meet a task
about average; acceptable	about average; acceptable
	sufficient for the purpose