| 单词 | groundless |
| 释义 | groundless —groundlessly, adv. —groundlessness, n. /grownd"lis/, adj. without rational basis: groundless fears. [bef. 900; ME: bottomless, unfathomable; OE grundleas. See GROUND1, -LESS] Syn. baseless, unfounded, unjustified, idle. |
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