frightful or hideous, esp. in appearance; extremely ugly.

shocking or revolting; outrageous

monstrous cruelty.

extraordinarily great; huge; immense

a monstrous building.

deviating grotesquely from the natural or normal form or type.

having the nature or appearance of a fabulous monster.

extremely; exceedingly; very.

adjective

average , common , expected , natural , ordinary , standard , little , miniature , small , tiny

adjective

aberrant , abnormal , atrocious , cruel , desperate , devilish , diabolical , disgraceful , dreadful , egregious , evil , fiendish , flagitious , foul , freakish , frightful , grotesque , gruesome , heinous , hellish , hideous , horrendous , horrible , horrifying , infamous , inhuman , intolerable , loathsome , macabre , miscreated , morbid , obscene , odious , ominous , outrageous , preposterous , rank , satanic , scandalous , teratoid , terrible , uncanny , unusual , vicious , villainous , colossal , cracking , elephantine , enormous , fantastic , gargantuan , giant , gigantic , grandiose , great , huge , immense , impressive , magnificent , mammoth , massive , monumental , prodigious , stupendous , titanic , towering , tremendous , vast , whopping , shocking , behemoth , brobdingnagian , bunyanesque , cyclopean , gigantesque , herculean , heroic , jumbo , massy , mastodonic , mighty , monster , mountainous , pythonic , freaky , awful , deformed , ghastly , large , overwhelming , revolting , unnatural