important vs big

important and big both are adjectives.

Word	Noun	Adjective	Verb	Adverb
important	No	Yes	No	No
big	No	Yes	No	Yes

important (adjective)	big (adjective)
of great significance or value	above average in size or number or quantity or magnitude or extent
of extreme importance; vital to the resolution of a crisis	conspicuous in position or importance
important in effect or meaning	given or giving freely
having or suggesting a consciousness of high position	generous and understanding and tolerant
having authority or ascendancy or influence	marked by intense physical force
	significant
	prodigious
	serious or severe
	loud and firm
	(of animals) fully developed
	in an advanced stage of pregnancy
	feeling self-importance
	exhibiting self-importance