dull and unoriginal
hackneyed - unoriginal
Something ‘hackneyed’ has been said, used, heard, or seen so often that it loses its meaning and becomes boring and trite. It is not necessarily that the thing itself has always been this way, it has simply become so due to overfamiliarity through overuse. Always used in a negative context.
Our manager tends to employ hackneyed phrases when trying to motivate people. All the staff find it extremely irritating.
As a filmmaker, I try to steer clear of hackneyed subjects or motifs and instead strive for innovation and originality.
If we keep taking such a hackneyed approach to dealing with the problem, we won’t get anywhere. We need to start thinking outside the box.