Definitions

1. adjective

more foolish or absurd

“He thought the new movie was looneyier than any of the others he had seen that year.”

2. noun

a foolish or absurd person

“The looneyier member of the group kept trying to convince everyone to join him in his wild plan.”

3. adverb

in a foolish or absurd manner

“The looneyier they tried to be, the more they failed.”