designed vs unintentional

designed and unintentional both are adjectives.

Word	Noun	Adjective	Verb	Adverb
designed	No	Yes	No	No
unintentional	No	Yes	No	No

As adjectives, designed and unintentional are synonyms defined as:

designed and unintentional: done or made or performed with purpose and intent

Other synonyms of designed include intentional.

designed (adjective)	unintentional (adjective)
done or made or performed with purpose and intent	done or made or performed with purpose and intent
	not done with purpose or intent