terrible (n.)
- aberrant
 - acute
 - appalling
 - arrant
 - bad
 - base
 - criminal
 - delinquent
 - desperate
 - deviant
 - dread
 - dreadful
 - evil
 - fell
 - forbidding
 - foul
 - frightening
 - gory
 - grave
 - grim
 - gross
 - grotesque
 - heavy
 - howling
 - lousy
 - macabre
 - nasty
 - offensive
 - rank
 - rousing
 - sad
 - savage
 - schlock
 - scurvy
 - shoddy
 - sinful
 - terrible
 - thumping
 - tough
 - unfortunate
 - vile
 - whacking
 - worst
 - wrong
 
terrible (adj.)
- aberrant
 - abnormal
 - abominable
 - acute
 - alarming
 - appalling
 - arduous
 - arrant
 - ashamed
 - astounding
 - atrocious
 - awe-inspiring
 - awesome
 - awful
 - bad
 - baneful
 - base
 - beastly
 - blameworthy
 - brutal
 - concentrated
 - contemptible
 - contrite
 - criminal
 - deadly
 - delinquent
 - deplorable
 - desperate
 - despicable
 - detestable
 - deviant
 - difficult
 - dire
 - direful
 - disagreeable
 - disgraceful
 - disgusting
 - distressed
 - distressing
 - dread
 - dreaded
 - dreadful
 - egregious
 - enormous
 - evil
 - exquisite
 - fearful
 - fearsome
 - fell
 - fetid
 - fierce
 - filthy
 - flagrant
 - forbidding
 - formidable
 - foul
 - frightening
 - frightful
 - fulsome
 - furious
 - ghastly
 - ghoulish
 - gory
 - grave
 - grievous
 - grim
 - grisly
 - gross
 - grotesque
 - gruesome
 - guilty
 - harrowing
 - hateful
 - heavy
 - heinous
 - hideous
 - horrendous
 - horrible
 - horrid
 - horrific
 - horrifying
 - howling
 - ignominious
 - illegal
 - improper
 - inappropriate
 - incorrect
 - indecorous
 - infamous
 - intolerable
 - joyless
 - laborious
 - lamentable
 - loathsome
 - lousy
 - macabre
 - mephitic
 - miserable
 - monstrous
 - morbid
 - nasty
 - nauseating
 - nauseous
 - nefarious
 - noisome
 - notorious
 - noxious
 - obnoxious
 - odious
 - off-base
 - off-color
 - offensive
 - outrageous
 - pitiable
 - pitiful
 - rank
 - redoubtable
 - regretful
 - regrettable
 - remorseful
 - repelling
 - reprehensible
 - repugnant
 - repulsive
 - revolting
 - rotten
 - rousing
 - rueful
 - sacrilegious
 - sad
 - savage
 - scandalous
 - scurvy
 - serious
 - severe
 - shabby
 - shameful
 - shameless
 - shocking
 - shoddy
 - sinful
 - sordid
 - sorry
 - squalid
 - strenuous
 - terrible
 - terrific
 - terrifying
 - thumping
 - toilsome
 - tough
 - tragic
 - tremendous
 - unbearable
 - unclean
 - undue
 - unfit
 - unfitting
 - unfortunate
 - unhappy
 - unlawful
 - unpleasant
 - unrighteous
 - unseemly
 - unspeakable
 - unsuitable
 - vehement
 - vicious
 - vile
 - villainous
 - violent
 - whacking
 - wicked
 - woeful
 - worst
 - worthless
 - wretched
 - wrong
 - wrongful
 
Terrible as an army with banners.
The other shape,
If shape it might be call'd that shape had none
Distinguishable in member, joint, or limb;
Or substance might be call'd that shadow seem'd,
For each seem'd either,—black it stood as night,
Fierce as ten furies, terrible as hell,
And shook a dreadful dart; what seem'd his head
The likeness of a kingly crown had on.
Satan was now at hand.
Terrible he rode alone,
With his Yemen sword for aid;
Ornament it carried none
But the notches on the blade.
The Death Feud. An Arab War-song.
And last of all an Admiral came,
A terrible man with a terrible name,—
A name which you all know by sight very well,
But which no one can speak, and no one can spell.