confident vs overconfident

confident and overconfident both are adjectives.

Word	Noun	Adjective	Verb	Adverb
confident	No	Yes	No	No
overconfident	No	Yes	No	No

confident (adjective)	overconfident (adjective)
having or marked by confidence or assurance	marked by excessive confidence
not liable to error in judgment or action
persuaded of; very sure