unable

Meanings

1. 1
   adj

   (usually followed by `to') not having the necessary means or skill or know-how

   unable to get to town without a car

2. 2
   adj

   Not able; lacking a certain ability.

   Are you unable to mind your own business or something?

3. 3
   intj

   Indicating that a requested course of action is not possible to carry out.

   "November three seven kilo, climb and maintain twelve thousand." "Unable, we have pressurization problems. Maintaining nine thousand."

4. 4
   adj

   lacking in power or forcefulness

5. 5
   adj

   (usually followed by `to') lacking necessary physical or mental ability

6. 6
   verb

   To render unable; to disable.

Etymology

From Middle English unable, unabel, unhable, unhabil, equivalent to un- + able.