self-contained vs poised

self-contained and poised both are adjectives.

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

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

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

self-contained (adjective)	poised (adjective)
constituting a complete and independent unit in and of itself	marked by balance or equilibrium and readiness for action
in full control of your faculties	in full control of your faculties