IPA: /fɪkst/
KK: /fɪkst/
Not changing or able to be changed; firmly established or set in place.
The meeting is scheduled for a fixed time every week.
Fixed → It is formed from "fixus" (from Latin, meaning fastened or secured) and the suffix "-ed" (indicating a past action or state). The word "fixed" means something that has been secured or made stable in a particular position.
Think of something that has been 'secured' ('fixus') in place — that's why 'fixed' means it is not moving.