不能
Meanings
impossible; incapable; unable
Describes a state where something cannot be done or is not feasible. Often used in formal or written contexts.
This problem is impossible to solve.
He was incapable of doing that job.
Refers to a lack of ability or skill, often as a personal or organizational shortcoming.
His incompetence led to the project's failure.
Medical/physiological term for erectile dysfunction. Often replaced by the loanword インポテンツ in modern usage.
See also: インポテンツ
There are various treatments for impotence.
having no solution
Mathematics term for an equation or problem that cannot be solved.
It was proven that this equation has no solution.
Usage patterns
- 〈事〉が不能になるfor something to become impossible/unfeasible
Due to the typhoon, the planned departure became impossible.
- 方程式が不能であるfor an equation to have no solution
This equation has no solution.
- 〈人〉が不能になるfor a person to become impotent
The doctor told him he had become impotent as a result of the illness.
- 不能な〈事〉an impossible/unfeasible ~
That was an unworkable plan.