monstrosity

abortion, malformation, miscreation, mutant, mutation

character, crackbrain, crackpot, crank, eccentric, kook, nut, oddball, screwball, weirdo

aberrant, deviant

individualist, maverick, nonconformist

curiosity, peculiarity, singularity

aberration, exception, irregularity, oddity, rarity

ogress

Frankenstein

banshee, bogeyman (also bogyman), demon (or daemon), devil, fiend, fright, imp, incubus

horror, terror

abomination, anathema

abnormality, freak

mutant, mutation

eye-catcher

blot, smear, smudge, spot, stain

badness, baseness, depravedness, depravity, diabolicalness, evil, evilness, foulness, heinousness, immorality, iniquitousness, iniquity, invidiousness, sinfulness, ungodliness, viciousness, vileness, wickedness

deplorableness, despicableness, detestableness, execrableness, hatefulness, loathsomeness, reprehensibleness

creepiness, eeriness, fearfulness, fearsomeness, ghoulishness, scariness

agony, anguish, hellishness, misery, torment, torture

accursedness, baseness, cursedness, devilishness, execrableness, fiendishness, hellishness

corruption, decadence, degeneracy, pervertedness

immorality

infamy, notoriety