Meaning of the Sanskrit Word: nirgunasya

  nirguṇasya—beyond the three modes of nature    Adi 4.206, Madhya 19.172
  nirguṇasya—of the Absolute    SB 1.10.19
  nirguṇasya—of the Transcendence    SB 2.5.18
  nirguṇasya—who is without the modes of nature    SB 3.7.2
  nirguṇasya—unadulterated    SB 3.29.11-12

Can't find any compound Sanskrit words containing nirgunasya.