comfortable vs well-off

comfortable and well-off both are adjectives.

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

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

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

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

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