unbounded vs limitless

unbounded and limitless both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unbounded	No	Yes	No	No
limitless	No	Yes	No	No

As adjectives, unbounded and limitless are synonyms defined as:

unbounded and limitless: seemingly boundless in amount, number, degree, or especially extent

Other synonyms of unbounded include boundless.

unbounded (adjective)	limitless (adjective)
seemingly boundless in amount, number, degree, or especially extent	having no limits in range or scope
	without limits in extent or size or quantity
	seemingly boundless in amount, number, degree, or especially extent