Senses
一定 certainly
certainly; surely; definitely; used to express a strong intention or a firm conclusion
一定 fair
to a certain degree; fair; some level of; indicates a limited but noticeable amount or quality
一定 particular
given; particular; certain; used to describe a specific set of circumstances or a specific type of person
一定 fixed
fixed; specified; definite; regular; having a set or unchangeable nature
一定 once fixed
once determined or decided; once a decision is made