Meaning of the Sanskrit Word: abudhasya

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

Can't find any compound Sanskrit words containing abudhasya.