ordinary style; mediocre manner
Refers to a style, method, or way of doing things that is unremarkable, average, or lacking distinction. Often used in critical or comparative contexts, such as art, writing, or performance.
His calligraphy is nothing more than ordinary style.
Compound of 凡 (bon, 'ordinary, mediocre') and 流 (ryū, 'style, school, manner'). The exact historical derivation is uncertain, but it follows a common pattern of forming abstract nouns from kanji compounds.