IPA: /ˌævəˈkeɪʃənl/
KK: /ˌævəˈkeɪʃənl/
Related to a hobby or secondary occupation that someone does in addition to their main job.
She enjoys avocational activities like painting and hiking during her free time.
Avocational is formed from "avocare" (from Latin, meaning to call away) and the suffix "-al" (meaning relating to). The word describes activities that are related to being called away from one's main vocation or job, typically referring to hobbies or interests outside of one's primary work.
Think of 'calling away' ('avocare') from your main job to engage in something you enjoy — that's what avocational means.