misstep[noun]Synonyms: error, blooper, boner, bull, fluff, lapse, miscue, mistake, slip, slipup
[TahlilGaran] English Synonym Dictionary ▲
mis‧step /ˈmɪs-step/
noun [countable] American English a mistake, especially one that is caused by not understanding a situation correctly:
A misstep here could cost millions of dollars. [TahlilGaran] Dictionary of Contemporary English ▲