1. Unshaken in purpose
   - undismayed, unshaken 
2. Resolutely courageous
   "undaunted in the face of death"

See also: brave, courageous, resolute

• tallage
• Tallahassee
• Tallapoosa
• Tallapoosa River
• tallboy
• Tallchief
• Talleyrand
• tallgrass
• tallier
• Tallin
• Tallinn
• tallis
• tallish
• tallith
• tallness
• tallow
• tallow oil
• tallowy
• Tallulah Bankhead
• tally
• tally clerk
• tally-ho
• tallyman
• Talmud
• Talmudic