fixity /ˈfɪksɪti/ noun3 •The state or condition of being fixed; Fixation.[O]therwise, it is almost inescapable that there must be some sort of centralized mechanism guaranteeing the fixity of prices[.] — 1995 •Something fixed. •The position of an operator relative to its operand (prefix, postfix) or operands (infix).One may use a fixity declaration in Haskell to describe an operator's precedence and direction of associativity. formsfixities