Dictionary.com
Thesaurus.com
Synonyms

mercilessly

American  
[mur-si-lis-lee] / ˈmɜr sɪ lɪs li /

adverb

  1. without mercy, pity, or tolerance.

    I was mercilessly bullied in school throughout my childhood.

    Any speaker who goes on longer than 15 minutes will be interrupted mercilessly by the moderator.

  2. without reprieve; unbearably.

    An unusually humid July morning had morphed into a mercilessly hot afternoon.


Etymology

Origin of mercilessly

merciless ( def. ) + -ly

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The sun would burn him mercilessly all day and the freezing water would chill him at night.

From Literature

For two decades Tom Brady and Bill Belichick mercilessly terrorised the league year after year, winning those six Super Bowl titles from nine appearances in an era of unrivalled dominance.

From BBC

Software stocks have been mercilessly battered in recent weeks, and that trend has continued in a striking way to start this year.

From MarketWatch

Even that could not help Van Veen as Littler powered mercilessly on, with a final big finish to seal his latest success.

From BBC

Nonetheless, the botched play has been mocked mercilessly.

From Los Angeles Times