Bulletproof
Bulletproof adjective - Incapable of being defeated, overcome, or subdued.
Usage example: this year the city's football team seems bulletproof
Secure and bulletproof are semantically related. in invincible topic. In some cases you can use "Secure" instead an adjective "Bulletproof".
Secure
Secure adjective - Having or showing great faith in oneself or one's abilities.
Bulletproof and secure are semantically related. Sometimes you can use "Bulletproof" instead an adjective "Secure".
Mutual synonyms
Cite this Source
Secure and Bulletproof. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/bulletproof/secure
Bulletproof & Secure. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/bulletproof/secure>.
Secure or Bulletproof. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/bulletproof/secure.
Google Ngram Viewer shows how "bulletproof" and "secure" have occurred on timeline