transitional
(a.)變遷的,過渡期的
tran·si·tion·al /-ˈɪʃnəl, ˈɪʒənḷ/ 形容詞
轉變的,過渡的,過渡型
Tran·si·tion·al a. Of or pertaining to transition; involving or denoting transition; as, transitional changes; transitional stage.
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transitional
adj : of or relating to or characterized by transition;
"adolescence is a transitional stage between childhood
and adulthood"