dyspneic vs dyspneal

dyspneic and dyspneal both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dyspneic	No	Yes	No	No
dyspneal	No	Yes	No	No

As adjectives, dyspneic and dyspneal are synonyms defined as:

dyspneic and dyspneal: not breathing or able to breathe except with difficulty

Other synonyms of dyspneic include breathless, dyspnoeal, dyspnoeic.

dyspneic (adjective)	dyspneal (adjective)
not breathing or able to breathe except with difficulty	not breathing or able to breathe except with difficulty