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

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

sporadˈically adverb

• stratocumulus
• stratonic
• stratopause
• stratopauses
• stratose
• stratosphere
• stratospheres
• stratospheric
• stratotanker
• stratotankers
• stratous
• stratovolcano
• stratovolcanoes
• stratum
• stratus
• straucht
• strauchted
• asterisk
• asterisked
• asterisking
• asterisks
• asterism
• asterisms
• astern
• asteroid