顽强

Traditional form:

頑強

Pinyin (reading):

wánqiáng

Definitions:

• tenacious
• hard to defeat

Characters:

• 顽 - stubborn, recalcitrant, obstinate
• 强 - strong, powerful, energetic

Traditional characters:

• 頑 - stubborn, recalcitrant, obstinate
• 強 - strong, powerful, energetic