happening without having been planned; depending on chances
without plan or organization
acting, given, without care
random, chaotic
pausing or stopping at intervals
irregular, sporadic
contrary to rules, to what is normal and established
random, variable
used for a time until something better is obtained
temporary
without any particular reason
haphazard, chance
happening during a particular season; changing with the seasons
irregular, sporadic
happening occasionally
on and off
temperature; temporary (worker)
temporary