sapless vs infirm

sapless and infirm both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sapless	No	Yes	No	No
infirm	No	Yes	No	No

As adjectives, sapless and infirm are synonyms defined as:

Other synonyms of sapless include debile, decrepit, feeble, rickety, weak, weakly.

sapless (adjective)	infirm (adjective)
lacking bodily or muscular strength or vitality	lacking bodily or muscular strength or vitality
destitute of sap and other vital juices; dry	lacking firmness of will or character or purpose