IPA: /nɒnəˈɡrɛsɪv/
KK: /nɑnəˈɡrɛsɪv/
Not showing or feeling aggression; calm and peaceful in behavior.
The nonaggressive approach to conflict resolution helped maintain harmony in the group.
Nonaggressive → It is formed from "non-" (meaning not) and "aggressive" (from Latin "aggressivus", meaning inclined to attack). The word "nonaggressive" means not inclined to attack or hostile.
Think of 'not' ('non-') being combined with 'inclined to attack' ('aggressive') to remember that 'nonaggressive' describes someone who is peaceful or not hostile.