Pronunciation: /ˈluːni/
noun a crazy or mentally unstable person
A1 She thought her neighbor was a loony because he talked to his plants.
A2 The children laughed at the loony man dancing in the street.
B1 The town had a reputation for being full of loonies who believed in conspiracy theories.
B2 The novel's protagonist was considered a loony by the other characters due to his eccentric behavior.
C1 The psychiatrist specialized in treating patients with severe mental illnesses, including those labeled as loonies.
C2 Despite being labeled a loony by society, the artist's work was highly praised for its unique perspective.
adjective crazy or mentally unstable
A1 He is a bit loony, but he's harmless.
A2 The loony idea of jumping out of a plane scared her.
B1 Some people think he's loony for believing in conspiracy theories.
B2 Her loony behavior at the party embarrassed her friends.
C1 Despite his loony reputation, he is actually quite intelligent.
C2 The artist's loony creations were celebrated for their originality.
formal The psychiatrist diagnosed the patient as a loony individual suffering from a mental disorder.
informal I heard that guy is a bit loony, always talking to himself and laughing for no reason.
slang She's a total loony tune, always doing crazy things to get attention.
figurative The idea of quitting your job and traveling the world may sound loony to some, but to others, it's a dream come true.
loonied
loonies
loonier
looniest
loony
will be loony
have been loony
is being loony
loony
as loony
to be loony
being loony
loonying