wickedly: a plot blackly contrived to wreak vengeance.
angrily: blackly refusing to yield to reason.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use blackly in a sentence
One blackly funny screed in the book is directed at Harry and David's gift baskets.
By and by, a straggling birch bluff rose blackly across their way, but nobody swung wide.Winston of the Prairie | Harold Bindloss
"Sure it's a word I'd like to have with you, young man," he growled, frowning blackly.Frank Merriwell's Pursuit | Burt L. Standish
There's just one thing I'd like to know, Houston thought blackly.The Penal Cluster | Ivar Jorgensen (AKA Randall Garrett)
Jack regarded Dick blackly for the fraction of a second; then he burst into a laugh, and clapped him on the shoulder.Love in a Cloud | Arlo Bates
He felt himself in one way innocent, but he felt himself in another way blackly guilty.The Regent | E. Arnold Bennett