Circumspect

Careful

Ant:rash

Zephyr

A gentle breeze

Ant:gale

Renegade

One who deserts one side in favor of another

Ant:loyalist

Retribution

Somethimg justly deserved

Ant:reward

Hurtle

To move or to fling swifty and with great force

Scourage

A person or thing that causes great trouble

Ant:boon , blessing

Caustic

Biting

Ant:mild ,pleasent

Taciturn

Not fond of talking

Ant:garrulous

Agnostic

One who believes that the existence of god can neither be proved 

Ant;believer

Terse

Brief and to the point

Ant:verbose

Uncanny

Weird

Exodus

A mass departure or emigration

Ant:return

Penitent

Remorseful

Ant:unrepentant

Vindicate

To clear of suspicion

Ant:besmirch

Raillery

Good-humored ridicule