Apparatuses and methods for waveform adaptations in RF sensing are described. An apparatus is configured to operate in one of a wireless communications mode or a sensing mode. The wireless communications mode is associated with at least one of a communications or sensing waveform. The sensing mode is associated with at least one of the communications or the sensing waveform, and the sensing and communication waveforms are different. The apparatus is also configured to obtain an indication of a switch to operate in another of the wireless communications or sensing mode. The apparatus is further configured to switch to the other mode per the indication. Another apparatus is configured to operate in the wireless communications or the sensing mode, to provide an indication of a mode switch, and to switch to the other mode per the indication.