| unceasing(adjective, strong, firm, determined, steady) |
| undismayed(adjective, bold, unconcerned, brave, steadfast) |
| unfailing(adjective, strong, firm, determined, steady) |
| unfaltering(adjective, strong, firm, determined, steady) |
| unflagging(adjective, strong, firm, determined, steady) |
| unflinching(adjective, strong, firm, determined, steady) |
| unremitting(adjective, strong, firm, determined, steady) |
| unshrinking(adjective, bold, unconcerned, brave, steadfast) |
| unstinted(adjective, strong, firm, determined, steady) |
| unswerving(adjective, strong, firm, determined, steady) |
| unwavering(adjective, strong, firm, determined, steady) |
| unwearied(adjective, strong, firm, determined, steady) |
| valiant(adjective, bold, unconcerned, brave, steadfast) |
| valorous(adjective, bold, unconcerned, brave, steadfast) |
| untiring(adjective, determined, persevering) |
| audacious |
| coming on strong(expression, adjective, idiom, bold, brave) |
| continued(adjective, strong, firm, determined, steady) |
| continuing(adjective, strong, firm, determined, steady) |
| courageous(adjective, bold, unconcerned, brave, steadfast) |