The phrase "a fixed character" is correct and usable in written English.
It can be used to describe a person or thing that has a consistent and unchanging nature or role.
Example: "In the story, the protagonist serves as a fixed character, representing the ideals of bravery and honor throughout the narrative."
Alternatives: "a constant figure" or "an unchanging role".
But if, as the metaphysical interpretation would have it, the world is in its real nature indefinite, then one is also attempting the impossible, though for a different reason; one is attempting to determine a fixed character for things that inherently lack any fixed character.
To them, Okonofua advises: "Try not to think of yourself as a fixed character in the same way that you should try not to think of your students as fixed characters.
The human subject has a fixed character.
Applying M to a length- substring of a string T results in a 'masked substring', which is the string obtained from by replacing for each (i.e. the characters corresponding to the don't-care positions) by a unique fixed character.
The dashed lines in Figure 1D F show the optimum value of the direct character,
I like to think of the collection's narrator as some fixed character buried in a video game fantasy, waiting for the player to arrive so it can deliver the epiphany it has been coded to transmit.
The common critical consensus of HCE's fixed character is summarised by Bishop as being "an older Protestant male, of Scandinavian lineage, connected with the pubkeeping business somewhere in the neighbourhood of Chapelizod, who has a wife, a daughter, and two sons".
Humanity, Pico asserted, had been assigned no fixed character or limit by God but instead was free to seek its own level and create its own future.
The tendency to favour Democrats is not, of course, some fixed character trait of women and Hispanics, neither of whom are, as you might have heard, a monolithic voting bloc.
Boas challenged the fixed character of racial groups by taking on one of the key fundaments to racial typology, cranium size.
It is interesting to note in this connection both the OED's aforementioned sense of 'forgivable' as a condition which merits forgiveness, as well as Butler's typology of anger which acknowledges a third type that includes such stable postures as irritability, sullenness, or churlishness, which link anger more to relatively fixed character traits than to instincts, cognitions, or actions.
