tentative

adj. tentativo, condicional, de tanteo, provisional, provisorio; indeciso, vacilante

tentativa

propuesta, posible, provisional

Ex: In 1943, he was offered a three-month appointment by the Director of the Library of Congress' Processing Department, the purpose of which was to make a tentative study of the ALA rules of description.

(adj.) = experimental, provisional
Ex: In 1943, he was offered a three-month appointment by the Director of the Library of Congress' Processing Department, the purpose of which was to make a tentative study of the ALA rules of description.