self-contained vs equanimous

self-contained and equanimous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
self-contained	No	Yes	No	No
equanimous	No	Yes	No	No

As adjectives, self-contained and equanimous are synonyms defined as:

Other synonyms of self-contained include collected, poised, self-collected, self-possessed.

self-contained (adjective)	equanimous (adjective)
constituting a complete and independent unit in and of itself	in full control of your faculties
in full control of your faculties