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/ˌdʌbl̩ˈd͡ʒɔɪntɪd/ · adjective
Having one or more joints (usually those of the fingers, arms, or legs) able to bend more than is normal; possessing hypermobility of one or more joints..
Use double-jointed when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Double-jointed means Having one or more joints (usually those of the fingers, arms, or legs) able to bend more than is normal; possessing hypermobility of one or more joints..
Common synonyms include flexible, flexile.
The opposite depends on the specific sense.
Use double-jointed where its definition matches the intended context.
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