Vocabulary

Interface
Definition: a common boundary or interconnection between systems, equipment, concepts, or human beings.
Antonym: separate
Synonym: junction
Get to that interface before the bomb goes off.
 
Expedition
Definition: an excursion, journey, or voyage made for some specific purpose, as of war or exploration.
Antonym: motionlessness
Synonym: journey
Christopher Columbus had an expedition to the Americas.

Frantic
Definition: desperate or wild with excitement, passion, fear, pain, etc.
Antonym: calm
Synonym: frenzied
That man was pretty frantic about the tickets to the game.

Cacophony
Definition: a discordant and meaningless mixture of sounds
Antonym: harmony
Synonym: dissonance
All this cacophony is driving me insane.

Impervious
Definition: incapable of being injured or impaired 
Antonym: mortal
Synonym: invincible
Nobody is impervious to stupid people. 

Looming
Definition: a mirage in which objects below the horizon seem to be raised above their true positions.
Antonym: distant
Synonym: impending
Valentine's Day is soon to be looming.

Bemusement
Definition: the state of being confused or absent-minded.
Antonym: clarity
Synonym: daydreaming
I was in a state of bemusement during class yesterday.

Vulnerable
Definition: capable of or susceptible to being wounded or hurt, as by a weapon
Antonym: protected
Synonym: "open for attack"
My little sister was vulnerable out in the street.

Dubious
Definition: of doubtful quality or propriety
Antonym: certain
Synonym: cloudy
That was a dubious plan.

Exotic
Definition: not native or usual
Antonym: normal
Synonym: foreign
I bought some exotic fruit at the store today.