Dictionary.com
Thesaurus.com
Synonyms

laboriously

American  
[luh-bawr-ee-uhs-lee] / ləˈbɔr i əs li /

adverb

  1. in a way that involves or requires much effort, exertion, care, or attention to detail.

    All equipment, food, and fuel have to be laboriously carried to the summit.

    Books were still rare, since they needed to be laboriously handwritten by scribes.


Other Word Forms

  • quasi-laboriously adverb
  • superlaboriously adverb
  • unlaboriously adverb

Etymology

Origin of laboriously

laborious ( def. ) + -ly