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adj.

1. Firmly in position; stationary.
2. Determined; established; set: at a fixed time; a fixed price.
3. Not subject to change or variation; constant: pensioners on a fixed income.
4. Chemistry.
   1. Not readily evaporating; nonvolatile.
   2. Being in a stable, combined form: fixed nitrogen.
5. 1. Firmly, often dogmatically held: fixed beliefs.
   2. Persistently occurring in the mind; obsessive: a fixed, delusive notion.
6. Supplied, especially with funds or needs. Often used in combination: a well-fixed bachelor.
7. Illegally prearranged as to outcome: a fixed election.

fixedly fix'ed·ly (fĭk'sĭd-lē) adv.
fixedness fix'ed·ness n.

adjective

1. Firmly in position: immobile, immovable, stationary, steadfast, steady, unmovable, unmoving. See move/halt.
2. Having distinct limits: definite, determinate, limited. See limited/unlimited.
3. In a definite and final form; not likely to change: certain, firm¹, flat, set¹. See change/persist.
4. On an unwavering course of action: bent, decided, determined, intent, resolute, set¹. See decide/hesitate.

adj

Definition: intent, resolute; established
Antonyms: flexible, indefinite, irresolute, unestablished, unfixed, variable

adj

Definition: permanent, steady
Antonyms: changeable, impermanent, temporary, unfixed, unsteady

adj

Definition: repaired
Antonyms: broken, damaged, in disrepair, unfixed

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IN BRIEF: adj. - Securely placed or fastened or set. adj. - Incapable of being changed or moved or undone; (of a number) having an unchanging value; Unmoving.

Everything flows and nothing abides; everything gives way and nothing stays fixed. — Heraclitus

Fixed Pitch	Boker Fixed Blade Knives
Fixed Wireless	Fixed Line Trimmer Head