firmness

Từ điển Oxford Advanced Learner 8th

firm·ness BrE [fɜːmnəs] ; NAmE [fɜːrmnəs] noun uncountable
Main entry: ↑firm_derived

• Từ đồng nghĩa / Synonyms:
  steadiness, resoluteness, firmness of purpose, resolve, resolution, soundness
• Từ trái nghĩa / Antonyms:
  unsteadiness, ricketiness, irresoluteness, irresolution, unsoundness