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
Test Your Vocabulary
Which Word Does Not Belong?
-
- Which of these words does not mean "nonsense"?

Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share thoroughly
Time Traveler for thoroughly
The first known use of thoroughly was in the 15th century
See more words from the same century