preventative

IPA/prɪˈven.tə.tɪv/
KK[privˈɛntətɪv]IPA/prɪˈven.t̬ə.t̬ɪv/

preventative — adjective

  • preventativepositive
  • more preventativecomparative
  • most preventativesuperlative

1. meant to keep a problem, illness, or accident from happening in the first place

1.adjectiveB2
Definition

meant to keep a problem, illness, or accident from happening in the first place — for example, taking medicine before you catch a cold, or checking equipment before it breaks down

Example

Felix's dentist told him that regular check-ups are an important form of preventative care.

attributive: preventative care

The company spent money on preventative maintenance for all its factory machines last year.

collocation: preventative maintenance

Common collocations
  • preventative care
  • preventative maintenance
  • preventative measure
  • preventative medicine
  • preventative step
  • preventative treatment
Synonyms
  • preventive

    interchangeable in meaning; shorter form, slightly more common in medical writing

  • precautionary

    emphasises actions taken beforehand to avoid danger, rather than general prevention

  • protective

    suggests shielding against harm, not necessarily stopping something before it starts

Antonyms
  • causative

    relating to something that makes an event or condition happen

  • curative

    meant to fix or heal something after it has already occurred

Grammar Patterns

preventative + noun (measure, care, medicine, maintenance)

be + preventative

Usage Note

This word is interchangeable with 'preventive', which has the same meaning. 'Preventive' appears slightly more often in formal medical writing, while 'preventative' is more frequent in everyday speech and general writing. Both are standard and neither is wrong.

Common Mistakes

Preventative' is bad English; use 'preventive' instead.
Both 'preventative' and 'preventive' are correct and have exactly the same meaning.
The longer form is not a mistake; both have been used since the 1600s.

preventative — noun

Word family

Synonym discussion

Sense: adjective/1

'Preventative' and 'preventive' are fully interchangeable — both have been in use since the 17th century and differ only in length. 'Preventive' is slightly more common in formal medical research and technical writing, while 'preventative' appears more in everyday conversation and general journalism. 'Precautionary' focuses on actions taken in advance out of caution, especially regarding safety (e.g., 'precautionary evacuation before a storm'), whereas 'preventative' covers a wider range of stopping measures. 'Protective' suggests creating a barrier against harm rather than stopping the cause — a helmet is protective gear, but a vaccine is a preventative. 'Prophylactic' is a formal medical term used almost exclusively in health contexts ('prophylactic antibiotics before surgery'). In most daily situations, 'preventative' or 'preventive' are the safest choices. For example: 'The doctor recommended preventative medicine' (natural), not 'the doctor recommended prophylactic medicine' (too clinical for everyday use).

preventive ↗precautionaryprotective ↗prophylactic

Common collocations

Nouns

Adverbs

  • purely preventative
  • strictly preventative
  • largely preventative

Phrases

  • serve as a preventative
  • act as a preventative
  • use something as a preventative

Prepositions

  • as a preventative against
  • as a preventative for

Etymology

LatinEnglish

The word 'preventative' was formed in English in the mid-1600s from the Latin stem 'praevent-' (the past participle of 'praevenire', meaning 'to come before, anticipate') plus the suffix '-ative'. The shorter form 'preventive' appeared around the same time, dropping the middle '-at-' syllable from the Latin participial stem. Both forms have coexisted for over 350 years, though 'preventive' has been slightly more common in formal medical writing. The core idea — 'coming before to stop something' — has remained stable since the word entered the language.