1. As if struck dumb with astonishment and surprise
   - dumbfounded, dumfounded, flabbergasted, stupefied, thunderstruck, dumbstruck

See also: surprised

• thermionics
• thermistor
• thermo-
• thermoacidophile
• thermobaric bomb
• Thermobia
• Thermobia domestica
• thermocautery
• thermochemical
• thermochemistry
• thermocline
• thermocoagulation
• thermocouple
• thermocouple junction
• thermodynamic
• thermodynamical
• thermodynamically
• thermodynamics
• thermodynamics of equilibrium
• thermoelectric
• thermoelectric thermometer
• thermoelectrical
• thermoelectricity
• thermogenic
• thermogram