adj.not confined or restricted with a tether

Untethered power supply of electronic devices
An untethered, electrostatic, globally controllable MEMS micro-robot
Modeling and Experiments of Untethered Quadrupedal Running with a Bounding Gait: The Scout II Robot
Modeling and Control of Untethered Biomicrorobots in a Fluidic Environment Using Electromagnetic Fields.
Modeling and Experimental Characterization of an Untethered Magnetic Micro-Robot
Tethered and Untethered Flight by Lygus hesperus and Lygus lineolaris (Heteroptera: Miridae) | Environmental Entomology | Oxford...
Role of the spleen in the peripheral vascular response to severe exercise in untethered dogs
Automatic navigation of an untethered device in the artery of a living animal using a conventional clinical magnetic resonance imagi...
Two-Dimensional Contact and Noncontact Micromanipulation in Liquid Using an Untethered Mobile Magnetic Microrobot
Thermomechanical Properties of Poly(methyl methacrylate)s Containing Tethered and Untethered Polyhedral Oligomeric Silsesquioxanes