noun which may take the genitive case particle 'no', noun
Used as a no-adjective or noun to describe something habitual, routine, or normal. Often appears in formal expressions like 平素の努力 (one's usual efforts) or 平素の行い (one's everyday conduct).
平素の努力が実を結んだ。
His everyday efforts bore fruit.
平素の行いが良い人は信頼される。
A person with good everyday conduct is trusted.
adverb
Adverbial use meaning 'under normal circumstances' or 'as a rule'. Common in formal or written contexts, such as business letters and speeches.
平素は午前9時に出社しております。
Ordinarily, I arrive at the office at 9 a.m.
平素よりご愛顧いただき、誠にありがとうございます。
Thank you very much for your continued patronage.
Compound of 平 (flat, calm, ordinary) and 素 (element, plain). The combination conveys the idea of 'ordinary and unadorned', referring to one's usual state or everyday affairs.