demented
de|ment|ed /dɪm'entɪd/
1 [ADJ]
Someone who is demented has a severe mental illness, especially Alzheimer's disease. (MEDICAL or OLD-FASHIONED)
2 [ADJ]
If you describe someone as demented, you think that their actions are strange, foolish, or uncontrolled. (INFORMAL)
Sid broke into demented laughter.
= crazy
1 [ADJ]
Someone who is demented has a severe mental illness, especially Alzheimer's disease. (MEDICAL or OLD-FASHIONED)
2 [ADJ]
If you describe someone as demented, you think that their actions are strange, foolish, or uncontrolled. (INFORMAL)
Sid broke into demented laughter.
= crazy