pertinacity
toughness
wilfulness
perversity
tenaciousness
persistence
perverseness
recalcitration
persistency
obstinacy
stubbornness
frowardness
pertainciousness
recalcitrance
egoism
tenacity
toughness
wilfulness
perversity
tenaciousness
persistence
perverseness
recalcitration
persistency
obstinacy
stubbornness
frowardness
pertainciousness
recalcitrance
egoism
tenacity
- tính ngoan cường: tenacitydoggednessstubbornnesstenaciousnessundauntedness
- ngoan cố: adjstubborn; obstinate; contumacious
- sự ngoan cố: stiff neck