well-off vs comfortable

well-off and comfortable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
well-off	No	Yes	No	No
comfortable	No	Yes	No	No

As adjectives, well-off and comfortable are synonyms defined as:

well-off and comfortable: in fortunate circumstances financially; moderately rich

Other synonyms of well-off include easy, prosperous, well-fixed, well-heeled, well-situated, well-to-do.

well-off (adjective)	comfortable (adjective)
fortunately situated	providing or experiencing physical well-being or relief (`comfy' is informal)
in fortunate circumstances financially; moderately rich	free from stress or conducive to mental ease; having or affording peace of mind
	in fortunate circumstances financially; moderately rich
	sufficient to provide comfort
	having a wide margin