in theory

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

analytical dangerous experimental hypothetical risky unproved unproven unsubstantiated

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

proven safe

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

abstract academic analytical imaginative intellectual logical metaphysical philosophical speculative vague

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

concrete ignorant illogical material objective physical real simple

certain definite factual proven