noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The characteristic of being rapid. uncountable
2. 2
   a rate that is rapid wordnet

Synonyms

All synonyms

celerityquicknessrapidityspeedspeedinessswiftness

Antonyms

All antonyms

response timeslacknessslownesssnails

Etymology

From rapid + -ness.