dangerous vs severe

dangerous and severe both are adjectives.

Word	Noun	Adjective	Verb	Adverb
dangerous	No	Yes	No	No
severe	No	Yes	No	No

As adjectives, dangerous and severe are synonyms defined as:

Other synonyms of dangerous include grave, grievous, life-threatening, serious.

dangerous (adjective)	severe (adjective)
involving or causing danger or risk; liable to hurt or harm	causing fear or anxiety by threatening great harm
causing fear or anxiety by threatening great harm	intensely or extremely bad or unpleasant in degree or quality
	severely simple
	very strong or vigorous
	very bad in degree or extent
	unsparing and uncompromising in discipline or judgment