dyspnoeal vs suffocative

dyspnoeal and suffocative both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dyspnoeal	No	Yes	No	No
suffocative	No	Yes	No	No

dyspnoeal (adjective)	suffocative (adjective)
not breathing or able to breathe except with difficulty	causing difficulty in breathing especially through lack of fresh air and presence of heat