severe vs dangerous

severe and dangerous both are adjectives.

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

As adjectives, severe and dangerous are synonyms defined as:

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

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