endothermal vs heat-absorbing

endothermal and heat-absorbing both are adjectives.

Word	Noun	Adjective	Verb	Adverb
endothermal	No	Yes	No	No
heat-absorbing	No	Yes	No	No

As adjectives, endothermal and heat-absorbing are synonyms defined as:

endothermal and heat-absorbing: (of a chemical reaction or compound) occurring or formed with absorption of heat

Other synonyms of endothermal include endothermic.

endothermal (adjective)	heat-absorbing (adjective)
(of a chemical reaction or compound) occurring or formed with absorption of heat	(of a chemical reaction or compound) occurring or formed with absorption of heat