Vocabulary List 56

zealous
(adjective) enthusiastic
She is a zealous supporter of the mayor.

callous
(adjective) cruel; not having sympathy for other people
He has a callous attitude toward the suffering of others.

frivolous
(adjective) silly; not important
He wasted his time and money on frivolous things.

perilous
(adjective) very dangerous
They made a perilous journey across the sea.

populous
(adjective) having a large population
Pakistan is the fifth most populous country in the world.