Achintyadbhutavistara (अचिन्त्याद्भुतविस्तार, IAST: Acintyadbhutavistāra) is an Sanskrit-origin Hindu boy-name meaning “He of inconceivable and wondrous cosmic expanse”. Formed from a-cintya (inconceivable), adbhuta (wondrous, marvellous), and vistāra (expanse, spread), this name declares that Viṣṇu's greatness exceeds the reach of all thought and imagination.

Meaning, etymology & significance

The prefix a- negates cintya (that which can be thought), making acintya a classical Sanskrit term for the transcendent reality beyond mental grasp. Adbhuta, meaning marvellous or miraculous, adds the quality of wonder that arises when one glimpses this vastness, and vistāra describes the unlimited spread of His divine glory. Together these three elements form a name that is simultaneously philosophical and devotional.

This epithet belongs to Lord Viṣṇu as the all-pervading, incomprehensible Absolute whose glories the Purāṇas celebrate as beyond reckoning. It can serve as a meaningful, if sonorous, given name; the shortened Adbhutavistara or simply Achintya are more practical alternatives.

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Scriptural source

Achintyadbhutavistara appears in the Vishnu Sahasranama, among the sacred names of Vishnu.

Astrology — nakshatra, rashi & numerology

By the standard Vedic correspondence between a name’s first syllable and the lunar mansion, Achintyadbhutavistara aligns with the Krittika nakshatra, under the Mesha rashi (Moon sign). Its Chaldean name-number is 7.