be wide of the mark
US /biː waɪd əv ðə mɑːrk/
UK /biː waɪd əv ðə mɑːrk/
1.
to be incorrect or inaccurate in a statement, judgment, or prediction
:
•
His predictions about the election results turned out to be wide of the mark.
•
Your assessment of the situation is completely wide of the mark.