1. Behaving responsibly
   - in his right mind, in their right minds

See also: sane

• frost snow
• frost up
• Frost's bolete
• frost-bound
• frostbite
• frostbitten
• frosted
• frosted bat
• Frostian
• frostily
• frostiness
• frosting
• frostweed
• frostwort
• frosty
• froth
• froth at the mouth
• frothily
• frothiness
• frothing
• frothy
• frottage
• frotteur
• froufrou
• frow