unadaptable

Resistant to change

Unadaptable describes someone or something unable or unwilling to adjust to new conditions.

A person may be unadaptable to change, rigid in habits or thinking.

A species unadaptable to climate shifts faces extinction.

The word often carries judgment—suggesting inflexibility as a flaw rather than a fixed trait: His unadaptable management style cost him the promotion.

unchangeable

immutable

Incapable of being changed

unalterableIncapable of being changed
irreversibleCannot be undone
permanentFixed without end

fixed · static · unchanging · invariable · constant · set · frozen · locked · irrevocable · unmodifiable

inflexible

rigid

Unable to bend

stiffNot easily bent
unbendingRefusing to change position
unyieldingRefusing to give way

immovable · fixed · set · hardened · inelastic · brittle · ossified · fossilized · petrified · calcified

stubborn

obstinate

Firmly refusing to yield

intransigentRefusing to compromise
headstrongStubbornly self-willed
bullheadedStubbornly refusing to yield

mulish · pigheaded · willful · obdurate · recalcitrant · dogged · tenacious · adamant · uncompromising · uncooperative

Opposites

flexibility and adaptability

unadaptableadaptable

Able to adjust readily

flexible · adjustable · malleable · pliable · pliant

versatility and applicability

unadaptableversatile

Capable in varied contexts

universal · convertible · variable · multipurpose · all-purpose

Family

adapt, adaptation, adaptable, adapting, adaptive, adapter, adapters, adaption, unadapted

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