loathsome (adj.)
- abhorrent
- abominable
- arrant
- atrocious
- awful
- base
- beastly
- blameworthy
- brutal
- contemptible
- crude
- deplorable
- despicable
- detestable
- dire
- disgusting
- dreadful
- egregious
- enormous
- execrable
- fetid
- filthy
- flagrant
- forbidding
- foul
- frightful
- fulsome
- ghastly
- grievous
- grisly
- gross
- gruesome
- hateful
- heinous
- hideous
- horrible
- horrid
- ignoble
- infamous
- invidious
- lamentable
- lousy
- malodorous
- mephitic
- miasmal
- miasmic
- monstrous
- nasty
- nauseating
- nefarious
- noisome
- notorious
- noxious
- objectionable
- obnoxious
- obscene
- odious
- offensive
- outrageous
- pitiable
- pitiful
- rank
- rebarbative
- regrettable
- repellent
- repelling
- reprehensible
- repugnant
- repulsive
- revolting
- rotten
- sad
- scandalous
- scurvy
- shabby
- shameful
- shocking
- shoddy
- sickening
- sordid
- squalid
- stinking
- terrible
- unclean
- vile
- villainous
- woeful
- worst
- worthless
- wretched
