wilful or (N American) willful /wilˈfŭl/

1. Self-willed, obstinate, headstrong
2. Deliberate, intentional
3. Willing (Shakespeare)

Wilfully

• antithrombin
• antithrombins
• antitoxic
• antitoxin
• antitoxins
• antitrade
• antitrades
• antitragi
• antitragus
• antitrinitarian
• antitrinitarianism
• antitrust
• antitussive
• antitussives
• antitypal
• antitype
• antitypes
• antitypic
• antitypical
• antivaccinationism
• antivaccinationist
• antivenene
• antivenenes
• antivenin
• antivenins