sporadic /spə-, spo-radˈik/ or (rare) sporadical /-kəl/

1. Scattered
2. Occurring here and there or now and then
3. Occurring casually

sporadˈically adverb

• back channels
• backchat
• backchats
• backchatted
• backchatting
• back-cloth
• back-cloths
• back-comb
• back-combed
• back-combing
• back-combs
• back-country
• backcourt
• backcourts
• back-crawl
• back-cross
• back-crossed
• back-crosses
• back-crossing
• back-date
• back-dated
• back-dates
• back-dating
• back door
• backdoor