mental illness
US /ˈmen.təl ˈɪl.nəs/
UK /ˈmen.təl ˈɪl.nəs/

1.
精神疾患, 心の病
a condition that affects a person's thinking, feeling, or mood and that may affect his or her ability to relate to others and function on a daily basis
:
•
He has been struggling with mental illness for years.
彼は何年もの間、精神疾患と闘ってきた。
•
Awareness of mental illness is growing.
精神疾患に対する意識が高まっている。