indistinct vs nebulous

indistinct and nebulous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
indistinct	No	Yes	No	No
nebulous	No	Yes	No	No

indistinct (adjective)	nebulous (adjective)
not clearly defined or easy to perceive or understand	of or relating to or resembling a nebula
	lacking definition or definite content
	lacking definite form or limits