critical vs unfavourable

critical and unfavourable both are adjectives.

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

critical (adjective)	unfavourable (adjective)
marked by a tendency to find and call attention to errors and flaws	(of winds or weather) tending to hinder or oppose
characterized by careful evaluation and judgment	not encouraging or approving or pleasing
being in or verging on a state of crisis or emergency	involving or creating circumstances detrimental to success or effectiveness
at or of a point at which a property or phenomenon suffers an abrupt change especially having enough mass to sustain a chain reaction
of or involving or characteristic of critics or criticism
forming or having the nature of a turning point or crisis
urgently needed; absolutely necessary