The term RELAXING INITIAL ACTIVITY can be solved by the crossword solution ICEBREAKER, which is a 10 letter word. An ICEBREAKER is an activity or event designed to help people become more familiar and comfortable with each other in a group setting. It is often used in the beginning of a meeting, party, or other social gathering to help people get to know each other better. Icebreakers are usually fun and lighthearted activities that help people relax and feel more comfortable in the group.