slack-jawed
adj.
1882, "over-talkative," from slack-jaw (n.) "impertinent language" (1797), from slack, adj. + jaw, n.. Meaning "open-mouthed and speechless" from astonishment, stupidity, etc., is from 1905.
| 词汇 | slack-jawed |
| 词根词缀 | Online Etymology Dictionary slack-jawed adj. 1882, "over-talkative," from slack-jaw (n.) "impertinent language" (1797), from slack, adj. + jaw, n.. Meaning "open-mouthed and speechless" from astonishment, stupidity, etc., is from 1905. |
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