Unable

1.

ដែលមិនអាច, ដែលអសមត្ថភាព, សមត្ថភាព

2.

(បច្ចេកទេស) ពុំអាច, គ្មានសមត្ថភាព

1.

Not able; not having sufficient strength, means, knowledge, skill, or the like; impotent' weak; helpless; incapable; -- now usually followed by an infinitive or an adverbial phrase; as, unable for work; unable to bear fatigue.