sizeable in WordNet English dictionary

1. fairly large
   "a sizable fortune"; "an ample waistline"; "of ample proportions"
   ample  sizable  sizeable 
   
2. large in amount or extent or degree
   "it cost a considerable amount"; "a goodly amount"; "received a hefty bonus"; "a respectable sum"; "a tidy sum of money"; "a sizable fortune"
   goodly  goodish  healthy  hefty  respectable  sizable  sizeable  tidy 
   

sizeable in English Wiktionary