平々凡々 へいへいぼんぼん Also written 平平凡凡 Meanings な-adjective, の-adjective, たる-adjective, Adverb very ordinary; mediocre; all-too-common; quite commonplace Kanji 平 flat. Read as ヘイ. 凡 ordinary. Read as ボン. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists