| 单词 | unsound |
|---|---|
| 音标 | ['ʌn'saund] |
| 解释 | a.不结实的，不坚固的；无根据的 |
| 红宝书 | 【英】 不结实的,不坚固的(n ot in a health or strong condition)无根据的(not firmly based) 【记】 un（不）+sound（合 理的，可靠的） |
| 字源 | unsound (adj.) early 14c., of persons, "diseased, wounded," from un- (1) "not" + sound (adj.). Similar formation in Middle Low German unsund, Middle Dutch ongesont, German ungesund. Meaning "morally corrupt" is recorded from c.1300; that of "not mentally healthy" is from 1540s. Sense of "not based on reasoning or fact" is attested from 1590s. Related: Unsoundly; unsoundness. |
| 不择手段背单词 | adj. 不结实的; 无根据的; 理由不充分的 【记】un不, sound(adj 合理可靠的): 理由不充分的 |
| 趣味全助记 | 无 |
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