Quiescent

Adj

Motionless

Many animals are quiescent over the winter months, minimizing activity in order to conserve energy

Synonyms: dormant; latent

Querulous

Adj

Inclined to complain; irritable

Curtis's complaint letter received prompt attention after the company labeled him a querulous potential troublemaker

Synonyms: peevish; puling; sniveling; whiny

Quotidian

Adj

Occuring daily; commonplace

The sight of people singing on the street is so quotidian in New York that passersby rarely react to it

Synonyms: everyday; normal; usual

Quixotic

Adj

Overly idealistic; impractical

The practical Danuta was skeptical of her roommate's quixotic plans to build a roller coaster in their yard

Synonyms: capricious; impulsive; romantic; unrealistic