壮そう語ご

そ

う

ご

Meanings

1

noun, noun or participle which takes 'suru', intransitive verb

Refers to speaking in an exaggerated, boastful manner. Often used in the phrase 大言壮語 (たいげんそうご).

壮そう

語ご

する

だけ

で

、

実じっ

績せき

は

何なに

も

ない

。

He just talks big, but has no actual achievements.

大たい言げん壮そう語ご
A common four-character compound meaning 'boasting' or 'talking big', where 壮語 is the second half.
誇こ張ちょう
A more general word for 'exaggeration', not necessarily boastful.

From 壮 (grand, robust) + 語 (word, speech). The exact historical derivation is uncertain, but the compound suggests 'grandiose speech'.