built-in vs inherent

built-in and inherent both are adjectives.

Word	Noun	Adjective	Verb	Adverb
built-in	No	Yes	No	No
inherent	No	Yes	No	No

As adjectives, built-in and inherent are synonyms defined as:

built-in and inherent: existing as an essential constituent or characteristic

Other synonyms of built-in include constitutional, inbuilt, integral.

built-in (adjective)	inherent (adjective)
existing as an essential constituent or characteristic	in the nature of something though not readily apparent
	existing as an essential constituent or characteristic