capability
It may be beyond the capability of the new owner to control a large adult dog.
The discipline required to keep accurate accounts was boring, time-consuming, and beyond the capabilities of most.
The best construction firms are unwilling to tender for work beyond their capability.
If a case is beyond the nurse's capability, the patient is referred to a doctor.
If a server is challenged beyond its capabilities then it may cause a bottleneck in the system.

SMART Vocabulary: related words and phrases

Healthiness of mind
bed
brain fog
compos mentis
eustress
healthy
marble
mental health
nondepressed
psychiatrically
psychical
psychically
sane
sanely
sanity
self-awareness
unneurotic
well adjusted
well balanced
wholesomely
your marblesidiom