ugly

adj. (-lier, -liest) 1 unpleasant to the eye, ear, or mind etc. (ugly scar; ugly snarl). 2 unpleasantly suggestive; discreditable (ugly rumours). 3 threatening, dangerous (an ugly look). 4 morally repulsive (ugly vices).  ugliness n. [old norse]

superl. Offensive to the sight; contrary to beauty; being of disagreeable or loathsome aspect; unsightly; repulsive; deformed.