thor·​ough·​ly | \ˈthər-(ˌ)ō-lē, sometimes ˈthȯr-;ˈthə-(ˌ)rō-\

Definition of thoroughly 

: in a complete or thorough manner Police thoroughly searched the crime scene for clues. Bats are extremely tidy: they comb themselves thoroughly, and don't gather a mess of nesting materials for their homes, as birds do.— Diane Ackerman : to a complete or thorough extent We were thoroughly satisfied with the service we received. thoroughly disgusted/delighted By taking all the tricks in the game, one defeats the opponent so thoroughly that he may be disconcerted …— Craig M. Carver

First Known Use of thoroughly

15th century, in the meaning defined above

Keep scrolling for more

Learn More about thoroughly

Share thoroughly

Statistics for thoroughly

Look-up Popularity

Time Traveler for thoroughly

The first known use of thoroughly was in the 15th century

See more words from the same century

Keep scrolling for more

Comments on thoroughly

What made you want to look up thoroughly? Please tell us where you read or heard it (including the quote, if possible).


obstinately defiant of authority

Get Word of the Day daily email!

Test Your Vocabulary

Autumn Words of the Day 2018

  • a-top-down-image-of-road-through-an-autumn-forest
  • Which is a synonym of fugacious?
True or False

Test your knowledge - and maybe learn something along the way.

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!