Historical clue formulations

• Barely visible, as light from a star — 2026-09-07
• Lower, as lights — 2026-04-08
• Lower, as the lights — 2025-12-01
• Not very bright — 2024-06-11
• Lower, as lights — 2024-03-03
• Opposite of bright — 2023-10-16
• Rather thick — 2023-06-11
• De-lighted? — 2023-05-16
• Bright's opposite — 2022-03-14
• Not bright — 2021-08-02
• Faint, as light — 2021-07-26
• Turn down, as lights — 2021-07-12
• Grow faint — 2021-05-23
• Turn down — 2021-04-23
• Low-wattage — 2021-02-21
• Barely perceptible, say — 2020-12-24
• Turn down — 2020-08-23
• ___-witted — 2020-06-16
• Bubbleheaded — 2020-01-04
• Not the sharpest crayon in the box — 2019-05-25
• Low-I.Q. — 2019-01-08
• Thickheaded — 2018-12-16
• Like 10-watt light bulbs — 2018-09-18
• Murky — 2018-03-16
• Darken — 2018-01-24
• A little thick — 2017-12-19
• Muted, as lights — 2017-12-06
• Barely lit — 2017-06-20
• Poorly lit — 2017-06-13
• Opposite of bright — 2017-03-13
• Thickheaded — 2016-12-28
• Not at all sharp — 2016-11-26
• Like distant stars — 2016-09-10
• Sharp as a bowling ball — 2015-12-04
• Slow-witted — 2014-09-21
• 10-watt, say — 2014-06-06
• Not bright — 2014-02-24
• Turn down — 2013-08-10
• Not too bright — 2013-07-10
• Not too smart — 2013-06-13
• Slow on the uptake — 2013-02-10
• Lower, as the lights — 2012-02-14
• A bit slow — 2011-09-25
• Dark — 2011-06-02
• Not too sharp — 2011-02-26
• Empty-headed — 2010-04-04
• Low-I.Q. — 2009-09-20
• Unfavorable — 2009-07-19
• Unfavorable — 2008-12-23
• Barely shining — 2008-12-01