Wiktionary
subduedly
adv. In a subdued manner.
Usage examples of "subduedly".
When they all took their candles and mounted the stairs, where the lamps were burning subduedly, Hermione captured Ursula and brought her into her own bedroom, to talk to her.
All the horseboxes were home in the roost, subduedly shining in the light of the night bulb over the canteen door.