spiritless vs unenthusiastic

spiritless and unenthusiastic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
spiritless	No	Yes	No	No
unenthusiastic	No	Yes	No	No

spiritless (adjective)	unenthusiastic (adjective)
lacking ardor or vigor or energy	not enthusiastic; lacking excitement or ardor
evidencing little spirit or courage; overly submissive or compliant