slow up meaning and definition

SLOW UP verb

Definition of slow up (verb)

1. become slow or slower
   • "Production slowed"
   • synonyms: slack, slacken, slow, slow down
2. cause to proceed more slowly
   • "The illness slowed him down"
   • synonyms: slow, slow down
3. lose velocity; move more slowly
   • "The car decelerated"
   • synonyms: decelerate, retard, slow, slow down
   • antonym: accelerate