"suaver" in the adjective sense
1. debonair, debonaire, debonnaire, suave
having a sophisticated charm
"a debonair gentleman"
2. politic, smooth, suave, bland
smoothly agreeable and courteous with a degree of sophistication
"he was too politic to quarrel with so important a personage"
"the manager pacified the customer with a smooth apology for the error"
Source: WordNet® (An amazing lexical database of English)
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