serious vs critical

serious and critical both are adjectives.

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

serious (adjective)	critical (adjective)
concerned with work or important matters rather than play or trivialities	marked by a tendency to find and call attention to errors and flaws
completely lacking in playfulness	characterized by careful evaluation and judgment
causing fear or anxiety by threatening great harm	being in or verging on a state of crisis or emergency
requiring effort or concentration; complex and not easy to answer or solve	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 great consequence	of or involving or characteristic of critics or criticism
appealing to the mind	forming or having the nature of a turning point or crisis
	urgently needed; absolutely necessary