Home › Words › U › undercommitundercommitundercommit means to make an inadequate commitment; to commit (oneself to) too little (of).Among words judged in Lexicurio's Arena, undercommit ranks #16,750 of 42,762 for Qualifying.EtymologyFrom under- + commit.verbTo make an inadequate commitment; to commit (oneself to) too little (of).Definitions & examples from Wiktionary (CC BY-SA 3.0).