Meaning & use

conjectural

adjective·Advanced

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UK/kənˈdʒektʃərəl/
US/kənˈdʒektʃərəl/

Meaning

  1. adjectivecomparable

    Based on guesswork or incomplete evidence rather than certain knowledge or proof.

    Grammar: Can be compared: 'more conjectural', 'most conjectural'. Often used before a noun or after a linking verb.

    Patterns

    • conjectural statement
    • purely conjectural
    • highly conjectural

    The report was based on conjectural evidence and could not be confirmed.

    His conclusions about the ancient civilization remain conjectural until more artifacts are found.

Word forms

comparativemore conjectural
superlativemost conjectural

Common combinations

purely conjectural
The theory is purely conjectural and lacks any experimental support.
highly conjectural
Any estimate of the cost is highly conjectural at this stage.
conjectural evidence
The historian relied on conjectural evidence to fill the gaps.

Synonyms and how they differ

speculative
Often implies a greater degree of risk or financial context; 'conjectural' is more neutral and academic.
hypothetical
Used for situations imagined for the sake of argument, while 'conjectural' suggests a real but unproven guess.
suppositional
Formal and rare; similar to 'conjectural' but less common in everyday writing.

Opposites

Word family

conjecture noun
An opinion or conclusion formed without complete evidence.
conjecture verb
To guess or form an opinion without firm evidence.
conjecturally adverb
In a way that is based on guesswork.

Commonly confused: conjectural or conjugal?

conjectural vs conjugal

Means 'relating to marriage'; 'conjectural' means 'based on guesswork'. They sound somewhat similar but have completely different meanings.

Practice

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