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

• unrejoicing
• unrelated
• unrelatedness
• unrelaxed
• unreleased
• unrelenting
• unrelentingly
• unreliability
• unreliable
• unreliableness
• unreliably
• unrelieved
• unremarkable
• unremarkably
• unremarked
• unremedied
• unremitting
• unremittingly
• unremorseful
• unremunerative
• unrenewable
• unrenewed
• unrentable
• unrepaired
• unrepeatable