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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English groundles (“bottomless”), from Old English grundlēas, from Proto-Germanic *grundulausaz, equivalent to ground + -less. Cognate with Dutch grondeloos, German Low German grundlos, German grundlos, Danish grundløs, Swedish grundlös.
baseless, idle, unfounded, unwarranted, wild
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Classic usage
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