What's the adjective for gunproof? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs gun and gunfight which may be used as adjectives within certain contexts.
“After his last suggestion was laughed at by his colleagues, he was gunshy about making another suggestion.”
“He didn't allow it to be filmed – perhaps because it was for charity, and he liked to do those things quietly, but also maybe because he was a little gunshy, because he'd not sung for a while.”