demented
/dɪˈmɛntɪd/
adjective
- Behaving in a crazy or extremely irrational way; mentally disturbed.
- The villain's demented laugh echoed through the abandoned theater.
- The movie features a demented scientist who wants to destroy the city.
- After days without sleep, his plans became increasingly demented.
- Extremely foolish or unreasonable; absurd.
- The traffic was so bad that taking the bus seemed like a demented choice.
- Only a demented person would spend all their money on lottery tickets.
- It's a demented idea to try to climb that mountain in winter without gear.