蚍蜉撼大樹

蚍蜉撼大树
pífúhàndàshù
  1. lit. an ant trying to shake a big tree (idiom)
  2. fig. to overrate one's own strength
  3. also written 蚍蜉撼樹 pífúhànshù

CEDICT

synonym of 蚍蜉撼樹 /蚍蜉撼树 (pífúhànshù)

Wiktionary

蚍蜉，大螞蟻。蚍蜉撼大樹指以大螞蟻的力量想去搖動大樹。比喻不自量力。唐．韓愈〈調張籍〉詩：「蚍蜉撼大樹，可笑不自量。」也作「蚍蜉撼樹」。

重編國語辭典

Entry Composition

1 蚍蜉 pífú a type of large ant
2 撼 hàn
  1. to shake
  2. to vibrate
3 大樹 dàshù
  1. (～區) Dashu (a district of Kaohsiung, Taiwan)
  2. (～鎮) Dashu (a town in Fengjie, Chongqing, China)
  3. Dashu (a district of Kaohsiung, Taiwan)
  4. Dashu (a town in Fengjie, Chongqing, China)
  5. Used other than figuratively or idiomatically: see 大, 樹 /树 (shù): big tree