铁定

Traditional form:

鐵定

Pinyin (reading):

tiědìng

Definitions:

• unalterable
• certainly
• definitely

Characters:

• 铁 - iron; strong, solid, firm
• 定 - to decide, to fix, to settle; to order; definite, fixed, sure

Traditional characters:

• 鐵 - iron; strong, solid, firm
• 定 - to decide, to fix, to settle; to order; definite, fixed, sure