untuoso (bn):
gladjakkerig(en) falsely or affectedly earnest; persuasively suave., olieachtig(en) of a liquid, etc.: having the nature or properties of an unguent or ointment., vettig(en) of a liquid, etc.: having the nature or properties of an unguent or ointment., zalvend(en) falsely or affectedly earnest; persuasively suave.
Via: Dbnary en WikiWoordenboeken
Via: Memodata.com