Find 1,217 synonyms for casually and other similar words that you can use instead based on 16 separate contexts from our thesaurus. Casually refers to behaviors or actions that are relaxed, informal, and lacking in formality or seriousness. Classic Car Restoration Process Explained. Readers interested in this topic may also find value in our analysis of Who Has More Money Tim Sweeney Or King Bach has been instrumental in providing context to the discussion presented in this section.