English Reference
adjective · noun

mental

adj. · n.
US /ˈmɛntəɫ/ UK /mˈɛntəl/ men·tal

  1. 01 B1 Intermediate Academic

    adj.relating to the mind and the process of thinking.

    adj.relating to the mind or intellectual processes as opposed to physical ones.

    Simple

    The doctor asked about her mental health as well as her physical symptoms.

    In context

    The athlete focused on mental preparation, using visualisation techniques to maintain composure during the high-pressure final.

  2. 02 B1 Intermediate

    adj.done in your head without writing anything down.

    adj.performed or taking place within the mind, especially without external aids.

    Simple

    She did some quick mental arithmetic to see if she had enough money.

    In context

    He made a mental note to call the supplier first thing Monday morning to resolve the shipping discrepancy.

  3. 03 B2 Upper Intermediate British EnglishInformal

    adj.crazy, very strange, or extremely wild.

    adj.denoting someone or something that is insane, foolish, or extremely chaotic. Informal and often used for emphasis.

    Simple

    The crowd went mental when the band finally walked onto the stage.

    In context

    The traffic in the city centre was absolutely mental during the festival weekend, with cars backed up for miles.

    Usage

    Often used as a predicative adjective after 'be' or 'go'.

    Teacher's tip

    In British English, this is very common for describing a wild party or a person's strange behaviour, but it can be offensive if used to mock real illness.

  4. 04 C2 Proficiency Technical Medicine

    adj.relating to the chin or the lower jaw.

    adj.relating to the chin or the mentum. Non-gradable and used exclusively in medical or biological contexts.

    Simple

    The dentist gave him an injection near the mental nerve to numb his lower lip.

    In context

    The surgeon identified the mental foramen to avoid damaging the nerve during the reconstructive jaw procedure.

    Usage

    Used in anatomical naming, such as the 'mental nerve' or 'mental foramen'.

  5. 05 C1 Advanced Slang

    n.your current way of thinking or your mood.

    n.a person's state of mind or psychological outlook. Often used in sports or gaming contexts.

    Simple

    You need to have the right mental to win a championship like this.

    In context

    The team's mental completely collapsed after they conceded the second goal in the final minutes.

Usage mental activity · mental care · mental disorder


Etymology 1

Borrowing from Middle French mental, from Late Latin mentālis, from mēns (“mind, disposition; heart, soul”) + -ālis (“-al”, adjectival suffix).

Etymology 2

c. 1727, from Latin mentum (“the chin”) + -al.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin la-lat mentālis
Level B1 · Intermediate
Frequency Very common
Updated