• synonyms

plan B

or Plan B

See more synonyms for plan B on Thesaurus.com
  1. a strategy or plan to be implemented if the original one proves impracticable or unsuccessful.
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Origin of plan B

First recorded in 1975–80; from the assumption that the original plan is ‘plan A’
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018