Context: I've taken a lot of short training courses over the years. There are too many to list them all on my CV (resume)with dates, so I put
passim: short courses including...
I've considered, and rejected, occasional, regular, intermittent. None of the spread unevenly through time descriptors seem right to me.
ETA: thanks for the comments. I now think "sporadic" has the right scattered nuance, but I don't think I want to use it. I'll find some way to re-phrase itand avoid the problem.