rapidity
UK/rә'piditi/US
B1
Definitions
n.
The quality of being rapid; swiftness, speed.
迅速；急速。
Root Breakdown
Root-derivedrapid (fast) + -ity (state, quality) = 'the state of being fast.' The -ity ending makes it noticeably formal and literary — you meet rapidity in writing ('the rapidity of the collapse'), where casual speech would just say 'how fast' or 'speed.'
Root rapid still carries 4 more wordsCommon Collocations
- 1.with rapidity迅速地
- 2.remarkable rapidity惊人的速度
- 3.alarming rapidity令人警觉的速度
- 4.the rapidity of change变化之迅速
Example Sentences
- 1.
Everyone was struck by the rapidity of the changes.
- 2.
The disease spread with alarming rapidity.
- 3.
He answered with a rapidity that suggested he had rehearsed.