Haphazard; random. The definition of hit or miss is a term used to describe something that might be good sometimes and bad others, especially when you cannot predict when it will be good or bad.

Can be hit or miss meaning?

also hit and miss. adjective. If something is hit-and-miss or hit-or-miss, it is sometimes successful and sometimes not.

Is it hit or miss?

The variation “hit and miss” is very popular, but makes less sense. This form of the phrase has traditionally been used to describe certain mechanical devices; but that meaning is rare and antiquated. In almost all contexts, the better form is “hit or miss.”