Synonyms of child's play

Noun

1. cinch, breeze, picnic, snap, duck soup, child's play, pushover, walkover, piece of cake, undertaking, project, task, labor

usage: any undertaking that is easy to do; "marketing this product will be no picnic"

2. play, child's play, diversion, recreation

usage: activity by children that is guided more by imagination than by fixed rules; "Freud believed in the utility of play to a small child"