MEGAWATT Antonyms There are 5 antonyms of the word megawatt. (opposite meanings)Did you mean?Definition of MEGAWATTBest Opposite Words For MEGAWATTTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1kilowattnounn2milliwattnounn3wattnounn4microwattverb, nounv, n5nanowattnounn