Adjectival use, often in compounds like メンタルヘルス (mental health) or メンタルトレーニング (mental training).
I'm accumulating mental fatigue.
Athletes also need mental strength.
mental health; mental state; mentality
Noun use referring to one's psychological condition, resilience, or mindset. Often used in contexts of stress, pressure, or emotional well-being.
I feel like my mental health has been fragile lately.
He has a strong mentality, so he bounces back quickly even after failure.
He's mentally tough, so he bounces back quickly even after failing.
She's mentally fragile and starts crying as soon as she's scolded a little.
The daily pressure ended up wearing me down mentally.
It's important to stay calm and keep your mental state steady during the match.
I think that's a mental (psychological) issue.
mental training
mental aspect; psychological side
mental health issues; emotional distress
mental weakness; fragile heart
extreme mental weakness; fragile heart
mental test
mental model
mental toughness
mental friend; student volunteer supporting a truant or unsociable child
mental breakdown
mental health care