Synonyms and antonyms of Mentally ill in British Thesaurus

(as) mad as a hatter/March hare ()

extremely silly or strange, sometimes because of mental illness

bipolar (adjective)

medical suffering from bipolar disorder

certifiable (adjective)

someone who is certifiable is officially considered to be seriously mentally ill

confused (adjective)

used for describing someone whose memory or mental powers are starting to fail

demented (adjective)

affected by dementia

depressed (adjective)

suffering from a medical condition in which you feel so unhappy that you cannot live a normal life

deranged (adjective)

behaving in an uncontrolled or dangerous way because of mental illness

diminished responsibility (noun)

a situation in which someone cannot be considered legally responsible for a murder because they are mentally ill

hysterical (adjective)

suffering from the medical condition of hysteria

insane (adjective)

old-fashioned suffering from very severe mental illness so that you cannot be considered legally responsible for your actions

mad (adjective)

informal an offensive way for describing someone who is mentally ill

madly (adverb)

in a way that shows that you have a mental illness

manic (adjective)

affected by a mental illness that makes someone behave in an extremely excited and active way

melancholic (adjective)

affected by melancholia or melancholy

mental (adjective)

informal old-fashioned mentally ill

neurotic (adjective)

suffering from neurosis

of unsound mind ()

mentally ill at the time of committing a crime

paranoiac (adjective)

paranoid

paranoid (adjective)

suffering from the mental illness paranoia

psychotic (adjective)

someone who is psychotic behaves in a dangerous or violent way because they have a serious mental illness

schizophrenic (adjective)

medical someone who is schizophrenic has schizophrenia

shell-shocked (adjective)

shell-shocked soldiers are affected by shell shock

unbalanced (adjective)

mentally ill

witless (adjective)

an old word meaning ‘mentally ill’