self-contained vs collected

self-contained and collected both are adjectives.

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

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

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

self-contained (adjective)	collected (adjective)
constituting a complete and independent unit in and of itself	brought together in one place
in full control of your faculties	in full control of your faculties