(adv.) In a silent manner.

aesthetically artistically becomingly calmly composedly coolly decently decorously demurely dispassionately elegantly genteelly gently gracefully humbly impassively imperturbably in good taste in silence inaudibly inexcitably inirritably levelheadedly like a lamb meekly mildly modestly noiselessly pacifically peaceably peacefully placidly properly quiescently sedately seemly serenely silently simply smoothly softly soundlessly steadily still stilly stodgily stoically stolidly stuffily tamely tastefully tranquilly unassumingly unobtrusively unostentatiously unperturbedly unpresumptuously unpretendingly unpretentiously with taste without ceremony