darkly; gloomily.
wickedly: a plot blackly contrived to wreak vengeance.
angrily: blackly refusing to yield to reason.

Origin of blackly

First recorded in 1555–65; black + -ly Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for blackly

Contemporary Examples of blackly

  • One blackly funny screed in the book is directed at Harry and David's gift baskets.

    The Daily Beast logo
    A Widow's Tale

    Jennie Yabroff

    February 15, 2011

Historical Examples of blackly

  • Werner, chewing nervously at his thumb knuckle, eyed Roger blackly.

    The Forbidden Trail

    Honor Willsie

  • Some had been boxed for sending and whose name do you think was blackly lettered on them?

    Polly the Pagan

    Isabel Anderson

  • The loom of the mountains was blackly visible in the starlight.

    'Tween Snow and Fire

    Bertram Mitford

  • "Be careful not to drink or eat in that hall," warned Cathbarr blackly.

    Nuala O'Malley

    H. Bedford-Jones

  • "I wish I were playing this for the first time," said Booverman, blackly.

Word Origin and History for blackly

1560s, from black (adj.) + -ly (2).

Online Etymology Dictionary, © 2010 Douglas Harper