critical vs grievous

critical and grievous both are adjectives.

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

critical (adjective)	grievous (adjective)
marked by a tendency to find and call attention to errors and flaws	causing fear or anxiety by threatening great harm
characterized by careful evaluation and judgment	shockingly brutal or cruel
being in or verging on a state of crisis or emergency	of great gravity or crucial import; requiring serious thought
at or of a point at which a property or phenomenon suffers an abrupt change especially having enough mass to sustain a chain reaction	causing or marked by grief or anguish
of or involving or characteristic of critics or criticism
forming or having the nature of a turning point or crisis
urgently needed; absolutely necessary