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adj C1 Advanced Uncommon

speculative

SPEHK-yoo-luh-tihv

Speculative (adj) means Based on guesswork or unproven theory rather than solid fact. Example: “The scientist was careful to label her early findings as speculative.”

adj
1
Based on guesswork or unproven theory rather than solid fact.
"The scientist was careful to label her early findings as speculative."
2
Involving significant financial risk in the hope of a large reward.
"They put their bonus into a speculative investment that could double or vanish."

How to Use Speculative

Learner’s notes

In plain EnglishNot confirmed — either an unproven idea, or a financially risky bet.

Common pairings
speculative fiction speculative investment purely speculative

Word Forms

more speculative comparative, most speculative superlative

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Fill the Gap

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The scientist was careful to label her early findings as _____.

Etymology

From Late Latin speculativus, from Latin speculor ("to observe, spy out").

Origin: Late Latin

Rhymes for speculative

See all rhymes for speculative →

Frequently Asked Questions

What does “speculative” mean?

The word “speculative” means based on guesswork or unproven theory rather than solid fact. In plain terms, not confirmed — either an unproven idea, or a financially risky bet.

How do you pronounce “speculative”?

“Speculative” is pronounced SPEHK-yoo-luh-tihv (/ˈspɛkjuləˌtɪv/ in IPA).

How do you use “speculative” in a sentence?

Here is “speculative” used in a sentence: “The scientist was careful to label her early findings as speculative.”

What part of speech is “speculative”?

“Speculative” is an adjective.

Where does the word “speculative” come from?

The word “speculative” comes from Late Latin. From Late Latin speculativus, from Latin speculor ("to observe, spy out").

Is “speculative” a common word?

“Speculative” is an uncommon word in modern English, usually learned at around the C1 level.

How many meanings does “speculative” have?

“Speculative” has 2 distinct senses listed in this dictionary. The most common is: based on guesswork or unproven theory rather than solid fact.

Definitions: FreeDict original editorial