fair and square; open and aboveboard; bold and forthright
Written forms
正々Usage99%
Standard kanji spelling with iteration mark.
正正Usage1%
Alternative spelling without iteration mark; less common but still seen.
Etymology
Reduplication of 正 (せい, 'correct, proper'), forming a taru-adjective/adverb. The exact historical derivation is uncertain, but the form follows a classical pattern for adverbial expressions.
