false
reads
There is no precise opposite, but laugh is a good possibility.
A five letter word that is the opposite of the word "gradual" and contains a second letter of "l" is a popular word game answer. The five letter word being sought is "fleet."
Five
Event.
phony
phony
Phony, bogus
False is a five letter word meaning fake.
Flush is a five letter word meaning wealthy.
A five letter word meaning peace is quiet or amity.
Tardy is a five letter word meaning late.
quint
What is the first letter of a five letter word meaning "pace"?
Ovoid is a five-letter word meaning egg-shaped.
Dizzy is a five letter word meaning unsteady.
A five letter word meaning the opposite of hurry would be dally. There may well be others