understood vs implicit

understood and implicit both are adjectives.

Word	Noun	Adjective	Verb	Adverb
understood	No	Yes	No	No
implicit	No	Yes	No	No

understood (adjective)	implicit (adjective)
fully apprehended as to purport or meaning or explanation	implied though not directly expressed; inherent in the nature of something
implied by or inferred from actions or statements	being without doubt or reserve