Sincerely yours; with apologies for brevity
Formal letter closing phrase used when the writer apologizes for the letter's brevity or informal style. Implies the letter was written hastily or without full formality.
I closed the letter with 'Sincerely yours (with apologies for the brevity).'
不一 alone means 'not one' or 'incomplete', and in letter closings it implies the letter does not fully express the writer's thoughts. Combined with 草々, it strengthens the apology for brevity.
Standard kanji form used in letter closings.
Variant kanji form; 草草 is an alternative repetition of 草.
Composed of 草々 (sōsō, 'sincerely yours' or 'roughly written') and 不一 (fuitsu, 'not one' or 'incomplete'). The phrase literally suggests the letter is hastily written and does not fully convey the writer's feelings.