theoretically

American  

[thee-uh-ret-ik-lee] / ˌθi əˈrɛt ɪk li /

adverb

1. in principle; according to reasonable assumptions or rules, as opposed to what actually happens.

   Theoretically they are free to work, but in practice they can’t because we do not recognize their credentials.

2. in a way that is purely speculative; hypothetically.

   It seems that theoretically the central bank could constrain government spending by allowing treasury checks to bounce.

3. according to, or in a way that relates to, a scientific theory.

   An alloy with a particular composition can be modeled to determine theoretically whether it has suitable mechanical and physical properties for medical applications.

4. in a way that relates to the set of principles or methods belonging to a particular subject, art, or activity.

   Taking classes in all four fields—politics, economics, history, and culture—allows students to be grounded theoretically in the humanities and social sciences.

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Other Word Forms

• antitheoretically adverb
• nontheoretically adverb
• untheoretically adverb

Etymology

Origin of theoretically

theoretical ( def. ) + -ly

Example Sentences

One of the most abundant organisms on Earth, algae captures carbon dioxide through photosynthesis and yields oil that theoretically could be used to make transportation fuel.

From The Wall Street Journal

The devices can -- theoretically, at least -- provide internet to an entire family or apartment building.

From Barron's

Araghchi denied the claim, noting that Iran’s stockpile of enriched uranium—and therefore the number of atomic bombs it could theoretically fuel—had been a matter of public record for years.

From The Wall Street Journal

With nine games remaining, just 19 points separate top and bottom-placed 18th, meaning theoretically anyone could still win the title or go down.

From BBC

Motorsport is one of a handful of sports in which men and women can - theoretically - compete fully with each other.

From BBC