corroborative

IPA/kəˈrɒbərətɪv/
KK[kɚˈɑbɚətˌɪv]IPA/kəˈrɑːbəreɪtɪv/

corroborative — adjective

  • corroborativepositive
  • more corroborativecomparative
  • most corroborativesuperlative

1. providing additional facts or information that help show an earlier claim, story

1.adjectiveC1
Definition

providing additional facts or information that help show an earlier claim, story, or theory is likely to be true

Example

Noor found corroborative emails that backed up the whistle-blower's account of fraud.

collocation: corroborative emails

The detective needed corroborative testimony before he could make an arrest.

Common collocations
  • corroborative evidence
  • corroborative testimony
  • corroborative of
Synonyms
  • supporting

    broader and more common; used in everyday contexts as well as formal ones

  • confirmatory

    suggests final or decisive proof; often used in scientific or legal settings

  • substantiating

    emphasises adding weight or substance to a claim that previously lacked support

Antonyms
  • contradictory

    pointing to the opposite conclusion rather than supporting it

Grammar Patterns

corroborative + noun

be + corroborative + of + noun

Usage Note

Commonly used before nouns such as 'evidence,' 'testimony,' 'data,' or 'statement.' When naming what is being supported, use 'corroborative of' + noun.

Common Mistakes

The report was corroborative the claim.
The report was corroborative of the claim.
the adjective requires 'of' before naming what is supported.

Word family

Synonym discussion

Sense: adjective/1

Corroborative is the most formal of these near-synonyms and is used almost entirely of evidence, testimony, or data in legal, scientific, or investigative contexts. Supporting is the everyday equivalent and fits any register. Confirmatory implies that the new evidence settles the matter decisively, while corroborative only adds weight without necessarily closing the case. Substantiating emphasises the act of giving substance to a claim that was previously thin or unbacked. Verifying focuses on checking facts for accuracy rather than building a cumulative case. For example, a corroborative witness strengthens an existing account, while a verifying witness independently checks whether the facts are correct.

supporting ↗confirmatorysubstantiating ↗verifying ↗

Common collocations

Nouns

  • corroborative evidence
  • corroborative testimony
  • corroborative data
  • corroborative findings
  • corroborative witness

Adverbs

  • highly corroborative
  • mutually corroborative

Phrases

  • corroborative of a claim
  • corroborative of a theory

Prepositions

  • corroborative of

Etymology

LatinMedieval LatinEnglish

From Latin corroborare ('to strengthen'), formed from com- ('together') + roborare ('to make strong'), which itself comes from robur ('oak,' symbolising strength and hardness). The adjective corroborative entered English in the early 1600s via Medieval Latin corroborativus. The idea of 'oak-like strength' shifting to 'evidential strength' reflects how English adopted the word primarily in legal and scholarly settings.