dangerous vs serious

dangerous and serious both are adjectives.

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

As adjectives, dangerous and serious are synonyms defined as:

dangerous and serious: causing fear or anxiety by threatening great harm

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

dangerous (adjective)	serious (adjective)
involving or causing danger or risk; liable to hurt or harm	concerned with work or important matters rather than play or trivialities
causing fear or anxiety by threatening great harm	completely lacking in playfulness
	causing fear or anxiety by threatening great harm
	requiring effort or concentration; complex and not easy to answer or solve
	of great consequence
	appealing to the mind