Meaning of the Sanskrit Word: nirantaram

  nirantaram—nondifferent    SB 3.25.17
  nirantaram—continuously    SB 6.9.39
  nirantaram—constantly    SB 8.8.18
  nirantaram—incessantly    SB 4.21.36
  nirantaram—with no material qualities.    SB 4.6.42

Can't find any compound Sanskrit words containing nirantaram.