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Classic usage
Pronunciation: /ʌnˈstɛdi/
Reading level: hard
Estimated CEFR level: C1 — Advanced
Estimated from word frequency; not an official CEFR classification.
From un- + steady. Like steady, the word first appeared in English around 1530. The word is comparable to Old Frisian onstedich, Low German unstadig, etc.
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tap / space
Classic usage
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