What is the opposite of fast?
Slow
What is the opposite of wet?
Dry
What is the opposite of full?
Empty
What is the opposite of young?
Old
What is the opposite of tall?
Short
What is the opposite of stop?
Go
What is the opposite of over?
Under
What is the opposite of float?
Sink
What is the opposite of heavy?
Light
What is the opposite of rich?
Poor
What is the opposite of dirty?
Clean
What is the opposite of sour?
Sweet
What is the opposite of hot?
Cold
What is the opposite of loud?
Quiet
What is the opposite of sit?
Stand
What is the opposite of in?
Out
What is the opposite of open?
Close(d)
What is the opposite of happy?
Sad
What is the opposite of lost?
Found
What is the opposite of big?
Small
What is the opposite of buy?
Sell
What is the opposite of soft?
Hard