  In this study, for the first time, we analyse the quasinormal modes of black
holes occurring within the framework of degenerate gravity. We investigate the
properties of the asymptotically flat spacetimes introduced recently in [JCAP
02(2022)02] that satisfy degenerate Einstein Gauss-Bonnet(dEGB) action and
belong to a much larger class of solutions which include cosmological constant.
This solution has two distinct branches akin to Einstein Gauss-Bonnet(EBG)
gravity. However, unlike the EBG solutions, both the branches of dEGB are
well-defined asymptotically. The negative branches from both theories can be
identified for the asymptotically flat case. We observe black holes for
specific ranges of the Gauss-Bonnet coupling parameter and perform a stability
analysis by calculating the quasinormal modes (QNMs) under scalar wave
propagation. Finally, the ringdown spectrums of our black holes are compared
with their GR counterparts.
