rapid
B1Neutral to formal; commonly used in all registers.
Definition
Meaning
Happening or occurring very quickly or with great speed.
Relating to or characterized by a swift rate of change, movement, or progression; often implying a positive or efficient outcome.
Linguistics
Semantic Notes
The word primarily emphasizes speed and brevity of time but does not necessarily imply a lack of control or thought. It can apply to both physical speed (movement) and abstract processes (change, growth).
Dialectal Variation
British vs American Usage
Differences
Usage is largely identical. Minor differences may occur in collocations (e.g., 'rapid transit' is more common in American English, while 'rapid response' is equally used).
Connotations
Consistently positive or neutral, emphasizing efficiency.
Frequency
High frequency in both varieties with negligible difference.
Vocabulary
Collocations
Grammar
Valency Patterns
[ADJ] + [N]a [rapid] + [N]at a [rapid] pace/rateVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “a rapid-fire exchange (of questions/answers)”
- “at a rapid clip”
- “rapid as lightning”
Usage
Context Usage
Business
Commonly used for describing market changes, company growth, or technological adoption (e.g., rapid innovation).
Academic
Used in sciences and social sciences to describe processes, changes, or results (e.g., rapid evolution, rapid urbanisation).
Everyday
Describes common changes or movements (e.g., rapid weight loss, rapid journey).
Technical
Used in medicine (rapid diagnosis), computing (rapid prototyping), and engineering (rapid transit).
Examples
By Part of Speech
adverb
British English
- The situation is changing rapidly.
- He spoke rapidly, making it hard to understand.
American English
- Technology is advancing rapidly.
- Her health improved rapidly after the treatment.
adjective
British English
- The company reported rapid growth in its third quarter.
- She made rapid progress in learning French.
American English
- The city is undergoing rapid development.
- We need a rapid solution to this problem.
Examples
By CEFR Level
- The train was very rapid.
- He is a rapid learner.
- There has been a rapid increase in prices this year.
- The fire spread rapidly through the old building.
- The rapid deployment of resources was crucial to the operation's success.
- Social media facilitates the rapid dissemination of information.
- The rapidity of technological obsolescence presents a challenge for long-term planning.
- Geopolitical shifts are occurring at a historically rapid pace.
Learning
Memory Aids
Mnemonic
Think of a 'RAPID' rabbit hopping quickly across a field – both start with 'rap-' and imply speed.
Conceptual Metaphor
TIME IS MOTION / SPEED IS EFFICIENCY. 'Rapid' conceptualises time as a moving object covering distance quickly, and speed as a desirable quality for success.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid over-translating as 'быстрый' for all contexts; for abstract processes, 'стремительный' or 'интенсивный' can be more accurate.
- The noun 'rapids' (пороги на реке) is a false friend and a different word class.
Common Mistakes
- Confusing 'rapid' with 'fast' in formal contexts where 'rapid' is more precise for processes.
- Using 'rapid' as an adverb ('He ran rapid') instead of 'rapidly'.
- Overusing in place of more specific terms like 'sudden' or 'precipitous'.
Practice
Quiz
In which context is 'rapid' LEAST appropriate?
FAQ
Frequently Asked Questions
'Fast' more often describes the speed of a physical object or person, while 'rapid' is more commonly used for processes, changes, or sequences (e.g., rapid development, rapid heartbeat). 'Rapid' often sounds slightly more formal.
Not in standard modern English. The plural noun 'rapids' refers to a fast-flowing, turbulent part of a river, but 'a rapid' as a singular noun for speed is archaic.
It is generally neutral to positive, emphasizing efficiency and desirable speed. Context can make it negative if the speed is associated with recklessness (e.g., rapid decline).
The correct adverb is 'rapidly'. Using 'rapid' as an adverb (e.g., 'He works rapid') is considered non-standard.