moist mɔɪst/ adjective adjective: moist; comparative adjective: moister; superlative adjective: moistest 1. slightly wet. "the moist, fertile soil" (of the eyes) wet with tears. "her brother's eyes became moist" synonyms: tearful, teary, dewy-eyed, watery, misty "her dark eyes grew moist" (of a climate) rainy. "exposure to the Atlantic on the west gives rise to a cool, moist climate" synonyms: damp, dampish, steamy, humid, muggy, clammy, dank, moisture-laden, wet,wettish, rainy, drizzly, drizzling, dewy, dripping, soggy, sweaty, sticky "the air was moist and heavy" antonyms: dry 2. MEDICINE marked by a fluid discharge. Origin late Middle English: from Old French moiste, based on Latin mucidus ‘mouldy’ (influenced by musteus‘fresh’, from mustum : see must2).
