表外字 - Wiktionary, the free dictionary

Compound of 表(ひょう) (hyō, “chart”) + 外(がい) (gai, “outside”) + 字(じ) (ji, “letter; written character”), literally "a character outside the chart".

• IPA^(key): [ço̞ːɡa̠iʑi]

表(ひょう)外(がい)字(じ) • (hyōgaiji) 

1. Kanji characters outside of the jōyō kanji and jinmeiyō kanji lists. For example, 攪 and its shinjitai form, 撹.

• 表(ひょう)外(がい)漢(かん)字(じ) (hyōgai kanji)
• 常(じょう)用(よう)外(がい)漢(かん)字(じ) (jōyōgai kanji)

• 常(じょう)用(よう)漢(かん)字(じ) (jōyō kanji)
• 人(じん)名(めい)用(よう)漢(かん)字(じ) (jinmeiyō kanji)