1. Invulnerable to fear or intimidation
   - audacious, brave, dauntless, fearless, hardy, intrepid

See also: bold

• Cytisus scoparius
• cyto-
• cytoarchitectonic
• cytoarchitectonics
• cytoarchitectural
• cytoarchitecture
• cytochrome
• cytochrome c
• cytogenesis
• cytogenetic
• cytogenetical
• cytogeneticist
• cytogenetics
• cytogeny
• cytokine
• cytokinesis
• cytokinetic
• cytokinin
• cytol
• cytologic
• cytologic smear
• cytologic specimen
• cytological
• cytologist
• cytology