1‘her work can be rather hit-or-miss’
haphazard, disorganized, undisciplined, erratic, unmethodical, uneven, careless, slapdash, slipshod, casual, offhand, remiss, cursory, lackadaisical, perfunctory, random, aimless, undirected, indiscriminate, trial-and-error
informal sloppy, all over the place, slap-happy
British informal all over the shop
We take a look at several popular, though confusing, punctuation marks.