sappy in WordNet English dictionary

1. ludicrous, foolish
   "gave me a cockamamie reason for not going"; "wore a goofy hat"; "a silly idea"; "some wacky plan for selling more books"
   cockamamie  cockamamy  goofy  sappy  silly  wacky  whacky  zany 
   
2. abounding in sap
   "sappy maple trees"; "sappy kindling wood"
   sappy