Cousins adjectives are listed in this post. Each word below can often be found in front of the noun cousins in the same sentence. This reference page can help answer the question what are some adjectives commonly used for describing COUSINS.
american, beloved, british, close, closest, country, dear, distant, english
european, even, fair, favorite, female, few, first, fourth, french
german, irish, larger, little, lost, male, many, maternal, more
new, numerous, old, older, only, other, own, poor, pretty
primate, royal, second, several, small, smaller, third, transatlantic, twin
various, wild, yankee, young, younger
Hope this word list had the adjective used with cousins you were looking for. Additional describing words / adjectives that describe / adjectives of various nouns can be found in the other pages on this website.