flint

Từ điển WordNet v3.1 - WordNet Dictionary

I - noun

a hard kind of stone;
a form of silica more opaque than chalcedony (Freq. 1)
• Derivationally related forms:
flinty
• Hypernyms:
silica, silicon oxide, silicon dioxide
• Hyponyms:
gunflint, firestone, flintstone

II - adjective

showing unfeeling resistance to tender feelings
- his flinty gaze
- the child's misery would move even the most obdurate heart
• Syn:
flinty, granitic, obdurate, stony
• Similar to:
hardhearted, heartless
• Derivationally related forms:
stone (for: stony), granite (for: granitic)

• Từ đồng nghĩa / Synonyms:
  flinty, granitic, obdurate, stony, Flint, Flint River