MODERATE—temperate, abstemious, sober, abstinent. (Immoderate.)
MODEST—chaste, virtuous, bashful. (Immodest.)
MOIST—wet, damp, dank, humid. (Dry.)
MONOTONOUS—unvaried, tiresome. (Varied.)
MONSTROUS—shocking, dreadful, horrible, huge.
MONUMENT—memorial, record, remembrancer.
MOOD—humor, disposition, vein, temper.
MORBID—sick, ailing, sickly, diseased, corrupted. (Normal, sound.)
MOROSE—gloomy, sullen, surly, fretful, crabbed, crusty. (Joyous.)
MORTAL—deadly, fatal, human.