Meaning of FIXED in English
/ fɪkst; NAmE / adjective
staying the same; not changing or able to be changed :
a fixed rate of interest
people living on fixed incomes
The money has been invested for a fixed period .
—see also abode
(often disapproving ) ( of ideas and wishes ) held very firmly; not easily changed :
My parents had fixed ideas about what I should become.
[ only before noun ] ( of expressions on sb's face ) not changing and not sincere :
He greeted all his guests with a fixed smile on his face.
- how are you, etc. fixed (for sth)?
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005