stately in WordNet English dictionary

1. impressive in appearance
   "a baronial mansion"; "an imposing residence"; "a noble tree"; "severe-looking policemen sat astride noble horses"; "stately columns"
   baronial  imposing  noble  stately 
   
2. refined or imposing in manner or appearance; befitting a royal court
   "a courtly gentleman"
   courtly  formal  stately 
   
3. of size and dignity suggestive of a statue
   stately  statuesque