wilful or (N American) willful /wilˈfŭl/

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

Wilfully

wilˈfully adverb

• ossivorous
• osso buco
• ossobuco
• ossuaries
• ossuary
• OST
• oste-
• osteal
• osteitis
• osteitises
• ostensibilities
• ostensibility
• ostensible
• ostensibly
• ostensive
• ostensively
• ostensiveness
• ostensories
• ostensory
• ostent
• ostentation
• ostentations
• ostentatious
• ostentatiously
• ostentatiousness