impetus
C1Formal
Definition
Meaning
The force or energy with which something moves; the driving force or stimulus behind an action, process, or idea.
Something that encourages a process or activity to develop more quickly; the momentum or motivation that initiates or accelerates change.
Linguistics
Semantic Notes
Primarily a singular noun; often used with verbs like 'give', 'provide', 'lose', 'gain', 'add'. Implies an initial push or acceleration rather than sustained force.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling and pronunciation are consistent.
Connotations
Equally formal and academic in both varieties.
Frequency
Slightly more frequent in British academic writing, but common in both.
Vocabulary
Collocations
Grammar
Valency Patterns
impetus for + noun/gerundimpetus to + infinitiveimpetus behind + nounimpetus from + nounVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “gain/lose impetus”
- “give fresh impetus to something”
Usage
Context Usage
Business
The merger provided the impetus for restructuring the company's European operations.
Academic
Newton's laws describe how an object in motion maintains its impetus unless acted upon.
Everyday
Winning the first game gave the team the impetus they needed for the rest of the tournament.
Technical
In physics, impetus is an archaic term superseded by the concept of momentum.
Examples
By CEFR Level
- The coach's speech gave the team the impetus to play better.
- The new law provided an impetus for change.
- The economic crisis served as the main impetus for political reform across the region.
- Without fresh impetus, the peace talks were likely to stall.
- The discovery of penicillin provided the initial impetus for the development of modern antibiotics.
- It was the impetus provided by venture capital that enabled the startup to scale so rapidly.
Learning
Memory Aids
Mnemonic
Imagine a PET (pet) needing an IM (instant message) to get moving. IM-PET-US gives the push!
Conceptual Metaphor
MOVING FORCE (ideas/processes as objects requiring energy to move)
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating as 'импульс' in all contexts; for physical motion, 'движущая сила' or 'толчок' is better.
- Do not confuse with 'impetuous' (impulsive).
Common Mistakes
- Using as a countable plural ('impetuses' is rare and awkward).
- Confusing with 'impulse' (sudden urge vs. driving force).
Practice
Quiz
Which word is closest in meaning to 'impetus' in this sentence: 'The tragedy was the impetus for stricter safety regulations.'?
FAQ
Frequently Asked Questions
Primarily uncountable, though rare countable use ('impetuses') exists in specialized contexts.
'Impetus' is the initial push or stimulus that starts motion/change. 'Momentum' is the continuing force or speed of development after it has started.
It's more common in formal, academic, or professional contexts. In casual speech, words like 'push', 'boost', or 'reason' are more frequent.
It comes from Latin 'impetere' meaning 'to attack' or 'assail', from 'in-' (toward) + 'petere' (to seek).