crucial vs life-and-death

crucial and life-and-death both are adjectives.

Word	Noun	Adjective	Verb	Adverb
crucial	No	Yes	No	No
life-and-death	No	Yes	No	No

crucial (adjective)	life-and-death (adjective)
of extreme importance; vital to the resolution of a crisis	vitally important
of the greatest importance
having crucial relevance