exothermal vs heat-releasing

exothermal and heat-releasing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
exothermal	No	Yes	No	No
heat-releasing	No	Yes	No	No

As adjectives, exothermal and heat-releasing are synonyms defined as:

exothermal and heat-releasing: (of a chemical reaction or compound) occurring or formed with the liberation of heat

Other synonyms of exothermal include exothermic.

exothermal (adjective)	heat-releasing (adjective)
(of a chemical reaction or compound) occurring or formed with the liberation of heat	(of a chemical reaction or compound) occurring or formed with the liberation of heat