unimprovable

6.2

No one can make it better

adjective
/ˌʌnɪmˈpruːvəbl/

: inmejorable

For it depicts the ordinary phenomenal world as unsatisfying and unimprovable, while the escape it offers, through union with God, is conceived so thinly and negatively that it can only appeal to those who have despaired of any more positive good.

Examples

Retina display means that your eye can't distinguish one pixel from another, so it is basically unimprovable.

Blog text (2)
That interference with nature is a way to stall the sheep's lineage and make it unimprovable. (n20)

Academic text (2003)
The final design of the smartphone is unimprovable; every feature has been perfected over time.
This classic recipe is unimprovable, as it has been cherished by families for generations.
The performance of the orchestra was unimprovable, leaving the audience in awe of their talent.

Synonyms

incorrigible

vsunimprovable

15 8.1

Impossible to change or correct, often about someone's behavior

is impossible to make better in any way rather than only failing correction

unreformable

vsunimprovable

1 8.8

Cannot change to behave or think in a better way

is about being impossible to make better in any situation or aspect

irremediable

vsunimprovable

1 9.6

Not able to be fixed or made better

is impossible to make better rather than implying incurable or permanent harm

Antonyms

improvable

1 4.1

Can be made better

How Perfect

unimprovable

6.2

excellent

∞ 1.0

good

Informal

407 7.9

adequate

234 2.7

flawed

182 3.7

Surface Forms

unimprovable positive

Morphology

unimprovable = improvable (transparent) = un + improve + able

Standard negation by 'un-' applied to the adjective 'improvable' yields the direct meaning 'not able to be improved'.

Etymology

Unimprovable comes from three parts: un- 'not', improve 'make better', and -able 'can be'. So unimprovable means 'not able to be made better', which is why we use it for something that cannot be improved.