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mutwillig adj.
gen.	bratty; mischievous; puckish; sportive; wanton; sportively; wantonly; on purpose
agric.	frisky; sprightly
amer.	willfully
brit.	wilfully
law, patents.	vexatious
tech.	playful
mutwillige adj.
gen.	sportively; wantonly

mutwillig : 9 phrases in 5 subjects

British usage, not spelling	3
Business	3
General	1
Insurance	1
Law	1