Adjective peaceful has 3 senses
- peaceful - not disturbed by strife or turmoil or war; "a peaceful nation"; "peaceful times"; "a far from peaceful Christmas"; "peaceful sleep"
Antonyms:  unpeaceful, belligerent, fighting, militant, war-ridden, warring, stormy, unpacific, warlike, unpeaceable
 - passive, peaceful - peacefully resistant in response to injustice; "passive resistance"
Antonym:  violent (indirect, via nonviolent)
 - law-abiding, peaceful - (of groups) not violent or disorderly; "the right of peaceful assembly"
Antonym:  disorderly (indirect, via orderly)
 
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