Thesaurus
To save this word, you'll need to log in.
Synonyms & Antonyms of posthaste
with great speed
- ran posthaste for the doctor
Synonyms for posthaste
Words Related to posthaste
Phrases Synonymous with posthaste
Near Antonyms for posthaste
Antonyms for posthaste
Keep scrolling for more
Keep scrolling for more
Comments on posthaste
What made you want to look up posthaste? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
A More Exception(al) Quiz
- Which of the following words is not a synonym for ‘a young person’?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Share posthaste
Time Traveler for posthaste
The first known use of posthaste was in 1545
See more words from the same year