1. A day when one's hair seems unmanageable; often then developing into a day when everything seems to go wrong, and one becomes increasingly irritable

Derived forms: bad hair days

• tideless
• tidemark
• tidewater
• Tidewater region
• tidewater river
• tidewater stream
• tideway
• tidily
• tidiness
• tidings
• tidy
• tidy sum
• tidy up
• tidytips
• tie
• tie beam
• tie clip
• tie down
• tie rack
• tie rod
• tie tack
• tie the knot
• tie-dye
• tie-in
• tie-on