1. In a random manner
   - randomly, indiscriminately, haphazardly, arbitrarily, at random, every which way 
2. Without having a choice
   - nolens volens

Encyclopedia: Willy-nilly

• frontstall
• frontward
• frontwards
• frore
• frosh
• frost
• frost fish
• frost heave
• frost heaving
• frost mist
• frost over
• frost snow
• frost up
• Frost's bolete
• frost-bound
• frostbite
• frostbitten
• frosted
• frosted bat
• Frostian
• frostily
• frostiness
• frosting
• frostweed
• frostwort