unconcernˈ noun

1. Lack of concern or anxiety
2. Indifference

• booths
• bootie
• booties
• bootikin
• bootikins
• booting
• boot is on the other foot
• boot is on the other leg
• boot-jack
• boot-jacks
• bootlace
• bootlace fungus
• bootlaces
• bootlace tie
• bootlace ties
• bootlast
• bootlasts
• bootleg
• bootlegged
• bootlegger
• bootleggers
• bootlegging
• bootleggings
• bootlegs
• bootless