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

• form genus Rhizoctinia
• form letter
• form of address
• form of government
• form-only
• formal
• formal garden
• formal logic
• formal semantics
• formaldehyde
• formalin
• formalisation
• formalise
• formalised
• formalism
• formalist
• formalistic
• formalities
• formality
• formalization
• formalize
• formalized
• formally
• formalness
• formalwear