to perfection
безупречн|о - irreproachably
~ый irreproachable, blamelles, faultless, impeccable
~ое поведение irreproachable behaviour/conduct
~ая репутация unimpeachable/spotless/stainless reputation, unblemished record
~ая честность unimpeachable honesty/integrity
~ный вкус impeccable taste