Synonyms of the word

terrible

• adj. Dreadful; causing alarm and fear.
• adj. Formidable, powerful.
• adj. Intense; extreme in degree or extent.
• adj. Unpleasant; disagreeable.
• adj. Very bad; lousy.

abominable

• adj. Worthy of, or causing, abhorrence, as a thing of evil omen; odious in the utmost degree; very hateful;…
• adj. (obsolete) Excessive, large (used as an intensifier).
• adj. Very bad or inferior.
• adj. Disagreeable or unpleasant.

alarming

• v. present participle of alarm.
• adj. causing apprehension, fear or alarm; frightening.

atrocious

• adj. Frightful, evil, cruel, or monstrous.
• adj. Offensive or heinous.
• adj. Very bad; abominable, disgusting.

awful

• adj. Oppressing with fear or horror; appalling, terrible.
• adj. (now rare) Inspiring awe; filling with profound reverence or respect; profoundly impressive.
• adj. Struck or filled with awe.
• adj. (obsolete) Terror-stricken.
• adj. Worshipful; reverential; law-abiding.
• adj. Exceedingly great; usually applied intensively.
• adj. Very bad.
• adv. (colloquial, US, Canada) Very, extremely.

bad

• adj. Not good; unfavorable; negative.
• adj. Not suitable or fitting.
• adj. Seemingly non-appropriate, in manners, etc.
• adj. Unhealthy.
• adj. Tricky; stressful; unpleasant.
• adj. Evil; wicked.
• adj. Faulty; not functional.
• adj. (of food) Spoiled, rotten, overripe.
• adj. (of breath) Malodorous, foul.
• adj. (informal) Bold and daring.
• adj. (hip-hop slang) good, superlative.
• adj. (of a need or want) Severe, urgent.
• adv. (now colloquial) Badly.
• n. (slang) Error, mistake.
• n. (countable, uncountable, economics) An item (or kind of item) of merchandise with negative value; an unwanted…
• adj. (slang) Fantastic.
• v. (archaic) Alternative past tense of bid. See bade.
• v. (Britain, dialect, transitive) To shell (a walnut).

dire

• adj. Warning of bad consequences: ill-boding; portentous.
• adj. Requiring action to prevent bad consequences: urgent, pressing.
• adj. Expressing bad consequences: dreadful; dismal; horrible; terrible; lamentable.
• adj. (informal) Bad in quality, awful, terrible.

direful

• adj. Fearful, terrible.

dread

• v. (transitive) To fear greatly.
• v. To anticipate with fear.
• v. (intransitive) To be in dread, or great fear.
• v. (transitive) To style (the hair) into dreadlocks.
• n. Great fear in view of impending evil; fearful apprehension of danger; anticipatory terror.
• n. Reverential or respectful fear; awe.
• n. Somebody or something dreaded.
• n. (obsolete) A person highly revered.
• n. (obsolete) Fury; dreadfulness.
• n. A Rastafarian.
• n. (chiefly in the plural) dreadlock.
• adj. Terrible; greatly feared.
• adj. (archaic) Awe-inspiring; held in fearful awe.

dreaded

• adj. Causing fear, dread or terror.
• adj. Wearing dreadlocks.
• v. simple past tense and past participle of dread.

dreadful

• adj. (obsolete) Full of dread, whether.
• adj. Full of something causing dread, whether.
• n. A shocker: a report of a crime written in a provokingly lurid style.
• n. A journal or broadsheet printing such reports.
• n. A shocking or sensational crime.

extraordinary

• adj. Not ordinary; exceptional; unusual;.
• adj. Remarkably good.

fearful

• adj. Frightening.
• adj. (now rare) Frightened, filled with terror.
• adj. Tending to fear.
• adj. (dated) Terrible; shockingly bad.

fearsome

• adj. frightening, especially in appearance.
• adj. (rare or archaic) fearful, frightened.

frightening

• adj. Causing fear; of capable of causing fear; scary.
• adj. (figuratively) Awful, terrible, very bad.
• v. present participle of frighten.

frightful

• adj. (obsolete) Full of fright, whether.
• adj. Full of something causing fright, whether.

horrendous

• adj. Extremely bad; awful; terrible.

horrific

• adj. Horrifying, causing horror; horrible.

intense

• adj. Strained; tightly drawn.
• adj. Strict, very close or earnest.
• adj. Extreme in degree; excessive.
• adj. Extreme in size or strength.
• adj. Stressful and tiring.
• adj. Very severe.

painful

• adj. Causing pain or distress, either physical or mental.
• adj. Afflicted or suffering with pain (of a body part or, formerly, of a person).
• adj. Requiring effort or labor; difficult, laborious.
• adj. (now rare) Painstaking; careful; industrious.
• adj. (informal) Very bad, poor.

severe

• adj. Very bad or intense.
• adj. Strict or harsh.
• adj. Sober, plain in appearance, austere.

tremendous

• adj. awe-inspiring; terrific.
• adj. Notable for its size, power, or excellence.
• adj. Extremely large (in amount, extent, degree, etc.) or great.

unspeakable

• adj. Incapable of being spoken or uttered; unutterable; ineffable; inexpressible.
• adj. Unfit or not permitted to be spoken or described.
• adj. Extremely bad or objectionable.

wicked

• adj. Evil or mischievous by nature.
• adj. (slang) Excellent; awesome; masterful; deeply satisfying.
• adv. (slang, New England, Britain) Very, extremely.
• n. (usually humorous) People who are wicked.
• v. simple past tense and past participle of wick.
• adj. Having a wick.
• adj. (Britain, dialect, chiefly Yorkshire) Infested with maggots.