ul·tra·slow
| \ ˌəl-trə-ˈslō
\
\
Definition of ultraslow
: moving with, exhibiting, or marked by extremely low speed : extremely or extraordinarily slow
ultraslow motion
Learn More About ultraslow
Statistics for ultraslow
Look-up Popularity
Cite this Entry
“Ultraslow.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultraslow. Accessed 24 Jun. 2022.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Test Your Vocabulary
Odd Habits and Quirks
-
- Which of the following best describes an easily irritated person?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Commonly Confused Words Quiz
Take a (break/brake) and (pore/pour) over this (c...
Take the quiz
-
Words Named After People
Find out who’s behind "leotard," "morphine," an...
Take the quiz
-
Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz
-
Spelling Bee Quiz
Can you outdo past winners of the National Spelli...
Take the quiz
Share ultraslow
Time Traveler for ultraslow
The first known use of ultraslow was in 1870
See more words from the same year