delirious -
In a disturbed state of mind, often due to illness or fever, leading to confusion and hallucinations.
After three sleepless nights, he was delirious and barely able to speak clearly.
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loudmouth -
Someone who speaks loudly and without thinking, often causing trouble or embarrassment.
Even though he was a real loudmouth, always bragging about his achievements and rarely listening to others, he was still amazingly successful.
adjective
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daffy -
Silly, different, strange, and funny
Fred had a twirled mustache and wore an oddly colored suit, but the town's residents simply viewed him as daffy instead of someone to be afraid of.
adjective
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kooky -
Strange and different, in a funny way
Salvador Dali's kooky appearance was only exceeded by his even more bizarre paintings.
adjective
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mercurial -
Changing emotions suddenly and often
Fred loved almost everything about his wife except her mercurial behavior, where her moods changed suddenly between sadness and happiness, or love and anger
noun
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blabbermouth -
An overly talkative person who speaks without thinking.
Don't tell Jerry things you don't want others to know about, because you can’t trust a blabbermouth with secrets.
adjective
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nuts -
Crazy, insane, or stupid, often in a humorous way
Bill's friends thought he was nuts for swimming in the middle of the winter.
adjective
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batty -
Mad and slightly crazy, usually in a humorous way
The computer system wouldn't let Greg log on or change his password, and it was driving him batty.
adjective
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mischievous -
Playfully causing trouble or annoyance, often in a fun or harmless way.
Her mischievous cat knocked over the plant just to get her attention.
noun
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weirdo -
A person whose dress or behavior seems strange
The weirdo kept peeking at everyone from behind the bushes.
noun
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psycho -
A person with severe mental health issues, often describing someone who behaves in an erratic or dangerous manner.
She accused him of being a psycho and told him to leave after he repeatedly showed up uninvited and acted innappropriately.
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wacky -
Something that is strange and different to the point of amusement.
George’s grandmother was well known and loved for her wacky taste in shoes.
