U+66DA "曚" CJK Unified Ideograph-# Unicode Character
U+66DA "曚" CJK Unified Ideograph-# is a Chinese character (Hanzi) that primarily conveys the meaning of "dim" or "obscure," often specifically referring to a hazy or twilight-like darkness, such as the fading light at dusk or a blurred, indistinct vision. In classical and modern Chinese usage, it appears in compounds like "曚曚" to describe a vague or dusky appearance, and it is distinct from similar characters like "朦" which can denote a more pronounced gloom or mental confusion. This character is also used in Japanese as a variant of "朦" within the Kangxi and Jōyō kanji systems, though it is less common in everyday writing. Structurally, it combines the "日" (sun) radical with the phonetic component "蒙," suggesting a visual association with the sun being covered or veiled.