Definition of mental illness in English:

mental illness

Line breaks: men¦tal ill|ness

noun

  • A condition which causes serious disorder in a person’s behaviour or thinking.
    More example sentences
    • There are a huge number of people who have serious mental illnesses who don't always have the illness in an acute manner.
    • Bipolar affective disorder is a common condition which, among mental illnesses, ranks second only to unipolar depression as a cause of worldwide disability.
    • There are many different kinds of neuro-psychiatric disorders or mental illnesses where hallucination plays a role.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day maelstrom
Pronunciation: ˈmeɪlstrəm
noun
a powerful whirlpool in the sea