Mad: meaning, definitions and examples

Repeated word

Used both informally to describe something extreme or unbelievable, and in formal settings to refer to severe mental illness. Can have negative connotations, especially in the latter sense.

• That roller coaster ride was insane!
• The court ruled that he was legally insane.

Frequently used in informal settings to describe someone who behaves in an irrational or wild manner. Can also mean extremely enthusiastic or excited about something. Sometimes used negatively to describe extreme or unusual behavior.

• That idea is just crazy.
• He's crazy about playing the guitar.

Used in more serious contexts to describe someone whose mental state is severely disturbed or unstable. Has a strong negative connotation.

• The character in the movie was portrayed as a deranged killer.
• He sounded completely deranged when he was yelling.

Used to describe someone who is mentally unstable or emotionally disturbed. May be used in both formal and informal contexts, usually with a negative connotation.

• He appeared unbalanced after the traumatic incident.
• Her unbalanced nature caused problems in their relationship.

Used in medical or psychological contexts to describe someone who has lost touch with reality, experiencing symptoms like delusions or hallucinations. Strong negative connotation.

• The patient was diagnosed as psychotic and was given medication.
• Her behavior seemed almost psychotic with all the paranoia.

Commonly used in casual conversation to describe being slightly upset or annoyed, typically in American English. In British English, 'mad' can also mean 'crazy'.

• I'm mad that I missed the bus.
• Are you mad at me?

Appropriate for describing a moderate level of displeasure or annoyance. Suitable for both casual and formal situations.

• She was angry about the delay.
• His angry words hurt her feelings.

Used to convey minor annoyance or discomfort. Not as intense as the other words and often used in everyday situations.

• He was irritated by the loud noise.
• I'm getting irritated with this slow internet.

Used to describe a very high level of anger, usually in more formal or dramatic contexts.

• The customer was enraged by the poor service.
• The decision left him feeling completely enraged.

Indicates intense anger, often used when someone is extremely upset and likely to take action. Can be used in both casual and serious contexts.

• She was furious when she found out the truth.
• His furious reaction was unexpected.

A strong term to describe being extremely angry, often used in more formal or serious situations.

• The unfair treatment infuriated him.
• She was infuriated by the constant lies.