Roll back

Pronunciation varies by accent · noun

Meaning

A return to a prior state by undoing some operation, especially of policy or price changes..

Definitions by Sense

1. A return to a prior state by undoing some operation, especially of policy or price changes.
2. The situation where a rollercoaster fails to reach the top of a hill and instead rolls backward.
3. (informal, automotive) A form of flatbed truck adapted or designed specifically to carry other vehicles, for use in recovery (wrecking, salvage) or for transporting.
4. (political science) The strategy of forcing a change in the major policies of a state, usually by replacing its ruling regime, or by totally annihilating an enemy's armed forces and occupying the country, as was done in World War II to Italy, Germany, and Japan.
5. (aviation) An uncommanded reduction in the thrust of a jet engine.
6. (transitive, computing, databases) To return to the previous state.
7. (intransitive, aviation, of a jet engine) To reduce thrust without having been commanded to do so.

Example Sentences

The mining industry also had a hand in two other rollbacks. One was a decision to withdraw a Clinton rule that reduced by 80 percent the permissible standard for arsenic in drinking water.

A bidder that knows it may acquire power at a lower price if it withdraws demand early will be more inclined to do so than a bidder that knows it cannot cause a price rollback.

Although Mr. Trump has billed his rollback as a boon to the auto industry, automakers say the split-market outcome would be a logistical and financial nightmare for them.

Near-synonym: tow truck (loosely often synonymous)

During the 1990s the Pope, who played such a central role in the rollback of communism, was one of the few international figures who could be heard speaking out against the new capitalist order.

Politically, Brzezinski was a centrist, or conservative, Democrat. He criticised both the Eisenhower administration’s “rollback” policy towards communism in Europe, and the Nixon-Kissinger detente.

The data was examined with respect to oil pressure. This showed that both the left and right engines' oil pressure generally follow each other until the start of the final acceleration, which resulted in first the right and then the left engines rolling back. The left engine oil pressure rose, as expected, as the engine accelerated: the right engine pressure, however, started to decrease, even though the engine was also accelerating prior to its rollback. Whilst, this observation, on the right engine, was based on only a few data points, it can be inferred that this was due to an oil temperature increase at, or close to, the start of the final acceleration. However, the loss of QAR data so close to the left engine rollback meant that it was not possible to draw a similar conclusion for the left engine.

The server is unstable, we need to rollback the changes.

Synonyms for roll back

Antonyms for roll back

Related Words

Word Forms

• rollbacks
• rollbacking
• rollbacked

Usage Notes

Choose a synonym only when it preserves the intended meaning, tone, and grammar of the full sentence.

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