hard-to-please vs hard to please

hard-to-please and hard to please both are adjectives.

Word	Noun	Adjective	Verb	Adverb
hard-to-please	No	Yes	No	No
hard to please	No	Yes	No	No

As adjectives, hard-to-please and hard to please are synonyms defined as:

hard-to-please (adjective)	hard to please (adjective)
(of persons) fussy and demanding	(of persons) fussy and demanding