Synonyms of the word

terrific

• adj. (colloquial) Frighteningly good.
• adj. (colloquial) Astounding or awesome.
• adj. Terrifying; causing terror.
• adj. Frightful or very unpleasant.
• adj. (colloquial) Extraordinarily great or intense.

alarming

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

extraordinary

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

fantastic

• adj. Existing in or constructed from fantasy; of or relating to fantasy; fanciful.
• adj. Not believable; implausible; seemingly only possible in fantasy.
• adj. Resembling fantasies in irregularity, caprice, or eccentricity; irregular; grotesque.
• adj. Wonderful; marvelous; excellent; extraordinarily good or great (used especially as an intensifier).

grand

• adj. Of a large size or extent; great.
• adj. Great in size, and fine or imposing in appearance or impression; illustrious, dignified, magnificent.
• adj. Having higher rank or more dignity, size, or importance than other persons or things of the same name.
• adj. (usually in compound forms) Standing in the second or some more remote degree of parentage or descent.
• adj. (Ireland, Northern England, colloquial, otherwise dated) Fine; lovely.
• n. A thousand of some unit of currency, such as dollars or pounds. (Compare G.).
• n. (music) A grand piano.

howling

• n. The act of producing howls.
• v. present participle of howl.

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.

marvellous

• adj. (Britain) Exciting wonder or surprise; astonishing; wonderful.

marvelous

• adj. (US) Exciting wonder or surprise; astonishing; wonderful.

rattling

• adj. Lively, quick (speech, pace).
• adj. (dated, intensifier) good, fine.
• n. rattle (a sound made by loose objects shaking or vibrating against one another).
• n. (nautical) Alternative form of ratline.
• v. present participle of rattle.

terrifying

• adj. Frightening or intimidating.
• adj. Of a formidable nature; terrific.
• v. present participle of terrify.

tremendous

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

wonderful

• adj. (now rare) Tending to excite wonder; surprising, extraordinary.
• adj. Surprisingly excellent; very good or admirable, extremely impressive.
• adv. (dialect) Exceedingly, to a great extent.

wondrous

• adj. Amazing, inspiring awe; marvelous.
• adv. In a wonderful degree; remarkably.