From Longman Dictionary of Contemporary Englishback out phrasal verbPROMISEto decide not to do something that you had promised to do It’s too late to back out now. After you’ve signed the contract, it will be impossible to back out. of The government is trying to back out of its commitment to reduce pollution. → back→ See Verb table
Examples from the Corpus
back of• Fitzsimmons said the Pistons backed out of both deals.• First, by minimizing conversion capital costs while backing out of expensive oil we conserve both capital and consumer resources.• By simply backing out of public provision, governments turn services over to the private market.• The king of Sicily backed out of the arrangement.• I backed out of the bathroom and closed the door.• The airline backed out of the deal.• Moscow had backed out of the deal.• I almost backed out of the race yesterday.• Tony got up and backed out of the room. 