synergist synergism • synergistic · · · Info · Definitions · Antonyms · Characters · · synergist · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a drug that augments the activity of another drug. · · Noun Definition 1 Antonyms · · · antagonist · · Antonym 0 Characters · · e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079