small
The five-letter word that means the opposite of narrower is "wider." In the context of spatial dimensions, "narrower" refers to something that is more limited in width, while "wider" signifies an increase in width or breadth. This pair of words represents a contrast in the extent or distance between two sides of an object or space.
wider
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."
A five letter word for the opposite of lower is upper.
A five letter word meaning the opposite of hurry would be dally. There may well be others
least
plain
front
night
Sharp
awake
Happy.