IPA: /spəˈrædɪk/
KK: /spɔˈrædɪk/
Happening occasionally or at irregular intervals, rather than regularly or continuously.
The sporadic rain made it difficult to plan the outdoor event.
Sporadic → It is formed from "sporadikos" (from Greek, meaning scattered) and the suffix "-ic" (meaning pertaining to). The word "sporadic" describes something that occurs at irregular intervals or is scattered rather than continuous.
Think of things that are 'scattered' ('sporadikos') and remember that 'sporadic' means something that happens irregularly or occasionally.