uncomplimentary vs unfavourable

uncomplimentary and unfavourable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uncomplimentary	No	Yes	No	No
unfavourable	No	Yes	No	No

uncomplimentary (adjective)	unfavourable (adjective)
tending to (or intended to) detract or disparage	(of winds or weather) tending to hinder or oppose
showing or representing unfavorably	not encouraging or approving or pleasing
	involving or creating circumstances detrimental to success or effectiveness