The word "contract" is referring to a muscle doing work, and the opposite is relax. Skeletal muscles work in pairs, and often one of the pair will contract while the other relaxes.
Contract or shrink.
mountainous
Actually, the word would be nerdy.
Profit
pessimistic
Maybe outgoing, which means friendly or sociable.
contrary contradict
contract, decrease, diminish.
A four letter word that is opposite of received and starts with the letter g is gave.
The word is fancy.
The name of the word that means the opposite of another word is called an antonyms.Antonym
"EXPAND"