1. EXPONENTIAL (ADJECTIVE):Rapid change

Synonyms: aggressive, epidemic  

       

Antonyms: restrict, curtail

Example Sentence:

Exponential change in goods value can impact the overall growth of the economy.

2. GARISH (ADJECTIVE):Flashy, tasteless

Synonyms: gaudy, showy         

 Antonyms: tasteful, refined

Example Sentence:

My wealthy aunt is known for wearing garish jewellery to casual events.

3. SPECIFICITY (NOUN):State of being precise or particular

Synonyms: particularity, precision     

Antonyms: vagueness, ambiguity

Example Sentence:

His input added a desirable note of specificity to the discussion.

4. PROLIFIC (ADJECTIVE):Fruitful, productive

Synonyms: creative, rich         

Antonyms: barren, fruitless

Example Sentence:

 

The company hopes to woo investors with news of its prolific stock returns.

5. CAVALIER (ADJECTIVE): Arrogant

Synonyms: curt, haughty           

Antonyms: humble, shy

Example Sentence:

He always seemed cavalier during the seminars.

6. PEEVISH (ADJECTIVE):Irritable, testy

Synonyms:  carping, churlish

        

Antonyms: happy, pleasant 

Example Sentence:

He was feeling peevish at that place.

7. 
   ARDENT (ADJECTIVE):Very enthusiastic

Synonyms: fervent, passionate    

Antonyms:  dull, unexcited

Example Sentence:

He was ardent about his new project. 

8. IMPISH (ADJECTIVE):Mischievous

Synonyms: jaunty, naughty        

Antonyms:  good, behaved

Example Sentence:

He is considered as one of the most impish boys in the class.

9. GHOULISH (ADJECTIVE):Hideous, scary

Synonyms: cruel, devilish   

Antonyms:  angelic, moral

Example Sentence:

Your new favourite mask seems ghoulish to me.

10. ATROPHY (VERB):Deteriorate

Synonyms: wither, wane         

Antonyms:  revive, strengthen

Example Sentence:

 

The use of cocaine can impair heart functioning and atrophy brain cells.