This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Not easily bent; stiff or rigid.

adj. Incapable of being changed; unalterable.

adj. Unyielding in purpose, principle, or temper; immovable.

adj. Not flexible; not capable of bending or being bent; stiff; rigid; firm; unyielding.

adj. Not willing to change, e.g. one's opinion or habits; obstinate; stubborn; resolute; determined.

adj. Not capable of being bent; stiff; rigid; firm; unyielding.

adj. Firm in will or purpose; not to be turned, changed, or altered; resolute; determined; unyieding; inexorable; stubborn.

adj. Incapable of change; unalterable; immutable.

Not flexible; incapable of bending or of being bent; rigid: as, an inflexible rod.

Unyielding in temper or purpose; that will not yield to prayers or arguments; firm in purpose; incapable of being turned; not to be prevailed on.

Not to be changed or altered; unalterable; not permitting variation.

Synonyms Rigid, stiff.

Inexorable, inflexible, resolute, steadfast, unbending, unyielding, immovable, unrelenting; obstinate, stubborn, dogged.

adj. incapable of change

adj. incapable of adapting or changing to meet circumstances

adj. not making concessions

adj. resistant to being bent

"Many European diplomats have bad memories of Mr. Samaras for what they called his inflexible, ultra-patriotic stances as foreign minister in theearly 1990s."

adamantine    adamant    fossilized    intransigent    fossilised    ironclad    rock-ribbed    hard-core    inexorable    brassbound   

flexible   

inflexibleness    inflexibility    inflexibly   

obstinate    -- unbending    pertinacious    stubborn    rigid    unyielding    inexorable    unrelenting    stiff    firm   

flexible   

unyielding    unflinching    implacable    resolute    rigid    inexorable    stubborn    immovable    unalterable    unforgiving