miscalculation
noun
[ ˌmɪskalkjʊˈleɪʃn ]
• an act of miscalculating; an error or misjudgement.
• "miscalculations were made in counting properties"
Similar:
error of judgement,
misjudgement,
misreading of the situation,
mistake,
blunder,
faux pas,
overestimate,
underestimate,
slip-up,
boo-boo,
fail,
misreckoning,