unchangeably

In immutable fashion

In a way that cannot be changed or altered.

The adverb emphasizes permanence or fixedness: The laws of physics operate unchangeably, Her mind was unchangeably set on leaving.

Often appears in formal or philosophical contexts discussing matters considered beyond revision.

permanent

permanently

In an unchanging manner

enduringly · timelessly · indelibly · lastingly · infinitely · immortally · unendingly · ceaselessly · interminably · perennially

irreversible

irrevocably

Beyond any taking back

terminally · conclusively · definitively · decisively · absolutely · unalterably · incurably · fatefully · inexorably · inescapably

fixed

firmly

With steadfast resolve

solidly · concretely · anchored · fastened · locked · set · rooted · embedded · entrenched · cemented

steadfast

resolutely

With firm determination

unswerving · staunchly · loyally · reliably · dependably · unflinchingly · unshakeably · unfailingly · steadily · doggedly

Opposites
permanence/mutability

unchangeablychangeably

In inconstant manner

variably · flexibly · fluidly · inconstantly · temporarily

Family

unchangeable, unchangeability, unchangeableness

Familiarity
Top 500,000
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Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G