no sooner than

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no sooner than something

not before a particular time The new drug is expected to be ready no sooner than early next year.
See also: sooner

no sooner do something than do something else

immediately after one thing happens another thing happens I had no sooner gotten my bags unpacked than I felt as if I had never been on vacation. He was no sooner graduated than he was on his way to California. She no sooner completed one project than she invested the profits in the next.
See also: sooner