| Disadvantageous (a.) Attended with disadvantage; unfavorable to success or prosperity; inconvenient; prejudicial; -- opposed to advantageous; as, the situation of an army is disadvantageous for attack or defense. Thesaurus Entries baleful, baneful, corroding, corrosive, corrupting, corruptive, counterproductive, damaging, deadly, deleterious, depreciative, depreciatory, detracting, detrimental, disparaging, disserviceable, distressing, harmful, hurtful, injurious, lethal, malefic, malevolent, malign, malignant, mischievous, noisome, noxious, ominous, pejorative, pernicious, poisonous, prejudicial, scatheful, slighting, toxic, unadvantageous, uncomplimentary, unfavorable, unprofitable, unrewarding, useless, venenate, veneniferous, venenous, venomous, vicious, virulent, worthless |