Third-person singular simple present indicative form of overachieve.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "overachieves" in a sentence
"In a summer full of overdone blockbusters (hello, Captain America?) and wan, airless independent films (The Future - urrgh), it's nice to find an old-fashioned low-budget genre film that overachieves."
"Maybe small press will now become "big" press so long as it never overachieves."
"In relative terms, "comedy overachieves in Washington," Smardak says."