1. Not shrinking from danger
   - unblinking, unflinching, unintimidated

See also: fearless, unafraid

• mastopathy
• mastopexy
• Mastotermes
• Mastotermes darwiniensis
• Mastotermes electrodominicus
• Mastotermes electromexicus
• Mastotermitidae
• masturbate
• masturbation
• masturbator
• mat
• mat up
• Mata Hari
• Matabele
• matador
• matai
• Matakam
• Matamoros
• match
• match game
• match plane
• match play
• match point
• matchable
• matchboard