What's the adjective for designatum? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs design and designate which may be used as adjectives within certain contexts.
“I could see him on my doorstep, in his designer jeans with flowers in his hand, day after day, pretty as a commercial until you looked into his eyes.”
“The campaign plays to the love-hate relationship young audiences have with in-crowd elitism – limited-edition sneakers, VIP entry at clubs, wearing designer tech – which it underlines with a reorchestration of the Tears For Fears hit, Mad World.”