Unable a. : 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.

Example:
Unable to type further because of something trying to load on my computer?

Taxonomy
dictionary, Encyclopedia, bl, authority, thesaurus browser, online dictionary, necessary power, skill, how to, Translations, Free Online Dictionary, project, adjective, synonyms, antonyms, necessary means, do something, buy a car.

Defination from the web:
unable in the Online Dictionary. Meaning of unable. Pronunciation of unable. Translations of unable. unable synonyms, unable antonyms. ... 2. Lacking mental or physical capability or efficiency; incompetent: unable to walk. ...