blameworthy (adj.)
- abominable
- amiss
- arrant
- atrocious
- awful
- bad
- base
- beastly
- black
- blamable
- blameful
- brutal
- censurable
- chargeable
- contemptible
- criminal
- culpable
- damnable
- dark
- delinquent
- deplorable
- despicable
- detestable
- dire
- disgraceful
- disgusting
- dreadful
- egregious
- enormous
- evil
- execrable
- fetid
- filthy
- flagitious
- flagrant
- foolish
- foul
- fulsome
- grievous
- gross
- guilty
- hateful
- heinous
- horrible
- horrid
- impeachable
- improper
- imputable
- indictable
- infamous
- iniquitous
- irresponsible
- knavish
- lamentable
- loathsome
- lousy
- low
- monstrous
- nasty
- naughty
- nefarious
- noisome
- notorious
- obnoxious
- odious
- offensive
- outrageous
- peccant
- pitiable
- pitiful
- punishable
- rank
- reckless
- regrettable
- reprehensible
- reproachable
- reprobate
- repulsive
- rotten
- sad
- scandalous
- scurvy
- shabby
- shameful
- shocking
- shoddy
- sinful
- sordid
- squalid
- terrible
- unclean
- unforgivable
- unholy
- unpardonable
- unspeakable
- unworthy
- vicious
- vile
- villainous
- wicked
- woeful
- worst
- worthless
- wretched
- wrong