平凡【へいぼん】
ordinary, common, commonplace, mediocre, unremarkable, undistinguished, uneventful
凡人【ぼんじん】
ordinary person, average person, mediocre person
凡庸【ぼんよう】
mediocre, ordinary, commonplace, banal
凡退【ぼんたい】
out in 1-2-3 order
非凡【ひぼん】
extraordinary, uncommon, remarkable, unusual, rare, prodigious
凡打【ぼんだ】
easy fly, easy grounder