Founder adjectives are listed in this post. Each word below can often be found in front of the noun founder in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing FOUNDER.
acknowledged, actual, alleged, american, benevolent, blessed, celebrated, century, charismatic, chief, distinguished
divine, eminent, eponymous, famous, first, future, generous, glorious, great, historical, holy
human, illustrious, joint, late, later, legendary, main, munificent, mythical, new, noble
old, only, original, other, own, pious, principal, pro, quaker, real, religious
reputed, revered, royal, sainted, saintly, second, single, sole, supposed, third, traditional
true, venerable, very, virtual, worthy
Hope this word list had the adjective used with founder you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.