independent vs fissiparous

independent is a noun but fissiparous is not a noun.

Word	Noun	Adjective	Verb	Adverb
independent	Yes	Yes	No	No
fissiparous	No	Yes	No	No

independent (noun)	fissiparous (noun)
a writer or artist who sells services to different employers without a long-term contract with any of them
a neutral or uncommitted person (especially in politics)

independent (adjective)	fissiparous (adjective)
free from external control and constraint	reproducing by fission
(of a clause) capable of standing syntactically alone as a complete sentence	having separated or advocating separation from another entity or policy or attitude
(of political bodies) not controlled by outside forces
not controlled by a party or interest group