- 1. a. New; unprecedented; unparalleled. Source: opted
- 2. adj. previously unknown Source: wordnet
- 3. New; unprecedented; unparalleled. Swift. Source: webster
- 4. j:100 s. previously unknown Source: ecdict
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unheard-of
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Word family
unhealedunhealthunhealthfulunhealthfulnessunhealthierunhealthiestunhealthinessunhealthyunhearableunheardunhearingunheartunheatedunheadunheadedunheal
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