ultraslow
adjective
ul·tra·slow ˌəl-trə-ˈslō 
: moving with, exhibiting, or marked by extremely low speed : extremely or extraordinarily slow
ultraslow motion
Word History
First Known Use
1870, in the meaning defined above
ultraslow
adjective
as in lingering
Synonyms & Similar Words
Relevance
- lingering
- pokey
- sluggish
- crawling
- dilatory
- slowish
- laggard
- dallying
- dragging
- plodding
- dawdling
- unhurried
- poking
- dillydallying
- languid
- poky
- tardy
- slow
- leisurely
- deliberate
- late
- measured
Antonyms & Near Antonyms
- rapid
- lightning
- hot
- fast
- splitting
- speedy
- swift
- blistering
- hasty
- quick
- zippy
- breathless
- brisk
- flying
- rattling
- whirlwind
- galloping
- snappy
- fleet
- dizzy
- nippy
- breakneck
- expeditious
- ready
- accelerated
- rapid-fire
- prompt
- fleet-footed
- rushed
- quickened
- hurried
- hastened