"struggle awkwardly and impotently," especially when hampered somehow, 1590s, of uncertain origin, perhaps an alteration of founder (q.v.), influenced by Dutch flodderen "to flop about," or native verbs in fl- expressing clumsy motion. Figurative use is from 1680s. Related: Floundered; floundering. As a noun, "act of struggling," by 1867.
flounder (n.)
"flatfish," c. 1300, from Anglo-French floundre, Old North French flondre, from Old Norse flydhra, from Proto-Germanic *flunthrjo (cognates: Middle Low German vlundere, Danish flynder, Old Swedish flundra "flatfish"), suffixed and nasalized form of PIE *plat- "to spread" (cognate: Greek platys "flat, wide, broad;" see plaice (n.)).
例文
1. What a pity that his career was left to flounder .
なんと残念なことか、彼の事業は苦境に陥っている。
2.Mr.Dambar had loaded his plate with stuffed flounder .
但抜さんのお皿には具入りのヒラメがいっぱい入っています。
3.The plane had begun to drop and flounder wildly.
飛行機はすでに下降を始め、激しく揺れている。
4.He couldn 't swim and just flouder about in the water.