inherent vs built-in

inherent and built-in both are adjectives.

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

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

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

Other synonyms of inherent include constitutional, inbuilt, integral.

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