CASUAL
6 letters
Historical clue formulations
- Nonchalant — 2021-12-16
- Like Friday attire in some offices — 2021-02-15
- Laid-back — 2018-10-09
- Nonchalant — 2010-01-06
- Dress option — 2002-04-05
- Free-and-easy — 1999-07-28
- Invitation notation — 1997-05-23
- Opposite of black-tie — 1996-01-23
- Free and easy — 1995-02-01
- Informal — 1994-10-30