2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Unable  \Un*a"ble\,  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. 
 
  Sapless  age  and  weak  unable  limbs.  --Shak. 
 
  From  WordNet  r  1.6  [wn]: 
 
  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}] 

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