usual; stereotyped; predictable
Often used with a slightly negative nuance to describe something that is trite, clichéd, or predictably routine. Common in phrases like お定まりのパターン (the usual pattern) or お定まりの文句 (the same old line).
His speech was the usual predictable content.
The same old excuse again, huh?
Standard spelling with honorific prefix お and kanji 定まり.
Formal or literary spelling using the kanji 御 for the honorific prefix.
From the honorific prefix お (o-) attached to the noun 定まり (sadamari, 'fixed thing, rule'), the nominalized form of the verb 定まる (sadamaru, 'to be decided, to be fixed').