unfavorable vs critical

unfavorable and critical both are adjectives.

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

unfavorable (adjective)	critical (adjective)
(of winds or weather) tending to hinder or oppose	marked by a tendency to find and call attention to errors and flaws
not encouraging or approving or pleasing	characterized by careful evaluation and judgment
involving or creating circumstances detrimental to success or effectiveness	being in or verging on a state of crisis or emergency
	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