unable (
http://definr.com/unable)
adj 1: (usually followed by `to') not having the necessary means or
skill or know-how; "unable to get to town without a
car"; "unable to obtain funds" [syn:
not able] [ant:
able]
2: (usually followed by `to') lacking necessary physical or
mental ability; "dyslexics are unable to learn to read
adequately;" "the sun was unable to melt enough snow"
[syn:
unable(p)]
3: lacking in power or forcefulness; "an ineffectual ruler";
"like an unable phoenix in hot ashes" [syn:
ineffective,
ineffectual]