Meaning of the Sanskrit Word: abudhasya

  abudhasya—of one who does not know    SB 6.5.15, SB 6.5.17
  abudhasya—a great fool    SB 5.8.29
  abudhasya—of one who does not know (this principle of time)    SB 6.5.19

Can't find any compound Sanskrit words containing abudhasya.