Gwrthryfelgarwch, n. rebelliousness
Gwrthryfelwr, n. a rebel
Gwrthrym, n. contrary; energy
Gwrthryn, n. oppugnancy
Gwrthryw, n. a contrary kind
Gwrthsaf, n. opposition
Gwrthsain, n. counter sound
Gwrthsefyll, v. to withstand
Gwrthsyniad, n. counter design
Gwrthun, a. ugly, unseemly, ill-favoured