fixed

(of a number) having a fixed and unchanging value

fixed and unmoving

• “with eyes set in a fixed glassy stare”
• “his bearded face already has a set hollow look” Connor Cruise O''Brien
• “a face rigid with pain”

securely placed or fastened or set

• “a fixed piece of wood”
• “a fixed resistor”

intent and directed steadily

• “had her gaze fastened on the stranger”
• “a fixed expresson”

incapable of being changed or moved or undone; e.g. "frozen prices"

• “living on fixed incomes”

mended or put in working order

• “a reconditioned sewing machine”
• “a repaired vacuum cleaner”
• “the broken lock is now fixed”

not increasing as the amount taxed increases

specified in advance

• “a given number”
• “we will meet at a given time and location”

directed with intense concentration

• “a fixed stare”
• “an intent gaze”