fixed

adj

1.
(of a number) having a fixed and unchanging value
Derived from:
fixedness
2.
fixed and unmoving
rigid set
Derived from:
fixedness fixity
3.
securely placed or fastened or set
eardfast holdfast rootfast
Antonym:
unfixed
Derived from:
fixedness fixity
4.
incapable of being changed or moved or undone; e.g. ‘frozen prices’
frozen
Derived from:
fixity