Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb overmaster
1 sense of overmaster
Sense 1
overpower, overmaster, overwhelm -- (overcome by superior force)
=> beat, beat out, crush, shell, trounce, vanquish -- (come out better in a competition, race, or conflict; "Agassi beat Becker in the tennis championship"; "We beat the competition"; "Harvard defeated Yale in the last football game")