facile in WordNet English dictionary

1. expressing yourself readily, clearly, effectively
   "able to dazzle with his facile tongue"; "silver speech"
   eloquent  facile  fluent  silver  silver-tongued  smooth-spoken 
   
2. performing adroitly and without effort
   "a facile hand"
   facile 
   
3. arrived at without due care or effort; lacking depth
   "too facile a solution for so complex a problem"
   facile