in theory

ADJECTIVE

hypothetic

Synonyms

WEAK

abstract academic analytical as a premise assumed codified conjectural contingent formalistic formularized general hypothetical ideal idealized ideational ideological imaginative impractical in the abstract instanced intelle

ADJECTIVE

speculative

Synonyms

STRONGEST

analytical dangerous experimental hypothetical risky unproved unproven unsubstantiated

WEAK

abstract assumed conceptive dicey formularized hairy hazardous ideal idealized ideological iffy intellectual logical notional philosophical presumed uncertain

Antonyms

STRONGEST

proven safe

ADJECTIVE

theoretic

Synonyms

WEAK

abstract academic analytical as a premise assumed codified conjectural contingent formalistic formularized general hypothetic hypothetical ideal idealized ideational ideological imaginative impractical in the abstract instanced intellectual logical metaphysical notional on paper pedantic philosophical postulated presumed problematical pure quixotic speculative suppositional tentative transcendent transcendental unearthly unproved unsubstantiated vague

ADJECTIVE

theoretical

Synonyms

STRONGEST

abstract academic analytical imaginative intellectual logical metaphysical philosophical speculative vague

WEAK

as a premise assumed codified conjectural contingent formalistic formularized general ideal idealized ideational ideological impractical in the abstract instanced notional on paper pedantic postulated presumed problematical pure quixotic suppositional tentative transcendent transcendental unearthly unproved unsubstantiated

Antonyms

STRONGEST

concrete ignorant illogical material objective physical real simple

WEAK

certain definite factual proven

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It’s a nice tool in theory, a way to pay attention to the other people on the call and not my Apple Notes interface.

From Slate • May 24, 2026

But the more open you are with each other, the more you can, in theory, combat inequity.

From MarketWatch • May 20, 2026

The law of supply and demand is simple in theory, but less so in practice.

From Barron's • May 14, 2026

Plus, they can manage a team of AI agents, in theory boosting productivity.

From The Wall Street Journal • May 13, 2026

Unfortunately, tendenko is easier to follow in theory than in reality.

From "Meltdown" by Deirdre Langeland