1. unable - Adjective
2. unable - Verb
3. unable - Interjection
4. unable - Adjective Satellite
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.
Source: Webster's dictionaryWithout the Lord's assistance, we are unable to do anything good. Therefore, we need much humility to find repose for our souls. Ephraim of Arizona
What is hell? I maintain that it is the suffering of being unable to love. Fyodor Dostoyevsky
Except a man fear the Lord, he is unable to renounce sin. Ambrose
He, who does not seize opportunity today, will be unable to seize tomorrow's opportunity. Somali Proverb
He who is unable is always willing. Italian Proverb
He who is unable to dance blames it in the stony yard. Kenyan Proverb