Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb master

4 senses of master

Sense 1
master, get the hang -- (be or become completely proficient or skilled in; "She mastered Japanese in less than two years")
       => know -- (know how to do or perform something; "She knows how to knit"; "Does your husband know how to cook?")

Sense 2
overcome, get over, subdue, surmount, master -- (get on top of; deal with successfully; "He overcame his shyness")
       => 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")

Sense 3
dominate, master -- (have dominance or the power to defeat over; "Her pain completely mastered her"; "The methods can master the problems")
       => control, command -- (exercise authoritative control or power over; "control the budget"; "Command the military forces")

Sense 4
master, control -- (have a firm understanding or knowledge of; be on top of; "Do you control these data?")
       => know -- (know how to do or perform something; "She knows how to knit"; "Does your husband know how to cook?")

Antonyms of adj mastered

1 sense of mastered

Sense 1
down, down pat (predicate), mastered -- (understood perfectly; "had his algebra problems down")

INDIRECT (VIA perfect) -> imperfect -- (not perfect; defective or inadequate; "had only an imperfect understanding of his responsibilities"; "imperfect mortals"; "drainage here is imperfect")

Similarity of adj mastered

1 sense of mastered

Sense 1
down, down pat (predicate), mastered -- (understood perfectly; "had his algebra problems down")
       => perfect (vs. imperfect) -- (being complete of its kind and without defect or blemish; "a perfect circle"; "a perfect reproduction"; "perfect happiness"; "perfect manners"; "a perfect specimen"; "a perfect day")