Definition of headcase in English:

headcase

Line breaks: head|case
Pronunciation: /ˈhɛdkeɪs
 
/

noun

British informal
A mentally ill or unstable person.
More example sentences
  • Stop being such an emotional headcase, she mentally scolded herself.
  • I refuse to accept that it can be statistically possible for the Conservative Party in the country to contain a higher percentage of headcases.
  • The producers seem to take the most fragile of headcases from our TV slots and ram them into a house stuffed with other fragile headcases.
Synonyms
madman/madwoman, maniac, lunatic
informal loony, nut, nutcase, nutjob, nutter, fruitcake, cuckoo, basket case, headbanger, schizo, crank, crackpot, oddball, weirdo, weirdie, sicko
British informal odd bod
Scottish informal radge
North American informal screwball, crazy, kook, geek, nutso, meshuggener, wacko, wack
US informal wing nut, wackadoo, wackadoodle
North American & Australian/New Zealand informal dingbat
informal , dated case

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Word of the day retroflex
Pronunciation: ˈretrəˌfleks
adjective
turned backward