wilful or (N American) willful /wilˈfŭl/

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

Wilfully

wilˈfully adverb

wilˈfulness noun

• nail-head-spar
• nail-hole
• nail-holes
• nailing
• nailings
• nailless
• nail one's colours to the mast
• nail polish
• nail polishes
• nail punch
• nail punches
• nail-rod
• nail-rods
• nails
• nail scissors
• nail set
• nail up
• nail varnish
• nail varnishes
• nain
• nainsel'
• nainsell
• nainsells
• nainsook
• nainsooks