off the mark

US /ɔːf ðə mɑːrk/
UK /ɔːf ðə mɑːrk/
"off the mark" picture
1.

incorrect or inaccurate

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His prediction about the election results was completely off the mark.
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Your calculations are a bit off the mark; let's recheck them.
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inaccurateincorrectwrongmistakenerroneous
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be quick off the markbe slow off the markmarkmarkedquestion markexclamation markquotation mark