nonadjustable

4.4

Cannot be changed or made different

adjective
/nɒnəˈdʒʌstəbl/

: no ajustable

Her bike had a nonadjustable seat, making it uncomfortable for her to ride long distances.
nonadjustable head

Examples

A second, nonadjustable foot pedal allows for maximal heating to cut and seal tissue simultaneously.

Academic text (2008)
The settings on this device are nonadjustable, so you cannot change the brightness level.
He purchased a chair with a nonadjustable height, which did not fit well under the desk.

Synonyms

unchangeable

vsnonadjustable

5 4.0

You cannot make it different

is the same idea but given as a general negation

unmodifiable

vsnonadjustable

7.1

No one can change it

is broader, covering inability to be moved or altered beyond form

unadjustable

vsnonadjustable

6.6

A thing you cannot change to fit different people or sizes

is more general, covering inability to be moved or altered in any way

irreformable

vsnonadjustable

9.5

Something you cannot change or fix

is broader, covering inability to be altered or moved beyond mere correction

fixed

vsnonadjustable

1.8

Stays the same and cannot be changed

is about inability to be moved or altered rather than simple stability

Antonyms

adjustable

35 3.4

Can be changed to fit different people or things

How Adjustable

flexible

31 3.4

adjustable

35 3.4

nonadjustable

4.4

permanent

650 3.2

Surface Forms

nonadjustable positive

Morphology

nonadjustable = adjustable (transparent) = non + adjust + able

Adding productive negating prefix 'non-' to the clearly formed adjective 'adjustable' yields a direct negation.

Etymology

Nonadjustable breaks into non- meaning 'not' and adjustable, from adjust which means 'to make right' or 'to change to fit'. So a nonadjustable thing is 'not' able to be changed or moved, which is why a nonadjustable rate, contract, or chair stays the same.