Antonyms of adj battleful

1 sense of battleful

Sense 1
battleful, bellicose, combative -- (having or showing a ready disposition to fight; "bellicose young officers"; "a combative impulse"; "a contentious nature")

INDIRECT (VIA aggressive) -> unaggressive, nonaggressive -- (not aggressive; not given to fighting or assertiveness)

Similarity of adj battleful

1 sense of battleful

Sense 1
battleful, bellicose, combative -- (having or showing a ready disposition to fight; "bellicose young officers"; "a combative impulse"; "a contentious nature")
       => aggressive (vs. unaggressive) -- (having or showing determination and energetic pursuit of your ends; "an aggressive businessman"; "an aggressive basketball player"; "he was aggressive and imperious; positive in his convictions"; "aggressive drivers")