This paper presents a miniaturized polarization and incident angle independent quad-band terahertz metamaterial absorber for sensing applications. The geometrical structure of the proposed design consists of one circle enclosed within two square rings. The design is etched on a low-cost FR-4 substrate having a thickness of 2μm. The size of the proposed unit cell is 20μm × 20μm. It provides 94.9%, 95.4%, 98.7%, and 97.8% absorption at 2 THz, 3.8 THz, 8.9 THz, and 10.8 THz, respectively. The polarization and incident angle independence is also checked to validate the stability of the structure. Additionally, the design evolution and the surface current distribution of the design is provided to have better insight into the structure.