Difference between Inflexible and Adamant

INFLEXIBLE vs ADAMANT: NOUN

A stone once believed to be impenetrable in its hardness.
An extremely hard substance.
A name applied with more or less indefiniteness to various real or imaginary metals or minerals characterized by extreme hardness: as the diamond
The natural opposite of the diamond
A lodestone or magnet, and
An anti-magnet.
In general, any substance of impenetrable or surpassing hardness; that which is impregnable to any force.
A stone imagined by some to be of impenetrable hardness; a name given to the diamond and other substances of extreme hardness; but in modern mineralogy it has no technical signification. It is now a rhetorical or poetical name for the embodiment of impenetrable hardness.
Lodestone; magnet.
Very hard native crystalline carbon valued as a gem
A rock or mineral held by some to be of impenetrable hardness; a name given to the diamond and other substances of extreme hardness.
An embodiment of impregnable hardness.
A magnet; a lodestone.

Incapable of being changed; unalterable.
Refusing to change one's attitude, purpose, or principles; immovable.
Not easily bent; stiff or rigid. : stiff.
Not making concessions
Incapable of adapting or changing to meet circumstances
Literal meanings
Resistant to being bent
Not capable of being bent; stiff; rigid; firm; unyielding.
Firm in will or purpose; not to be turned, changed, or altered; resolute; determined; unyieding; inexorable; stubborn.
Incapable of change; unalterable; immutable.
Not willing to change, e.g. one's opinion or habits; obstinate; stubborn; resolute; determined.
Incapable of change
Extended meanings; incapable of change

Impervious to pleas, persuasion, requests, reason
Firm; unshakeable; unyielding; determined.
Not willing to change one's opinion, purpose, or principles; unyielding.
Not capable of being swayed or diverted from a course; unsusceptible to persuasion

Inexorable, inflexible, resolute, steadfast, unbending, unyielding, immovable, unrelenting; obstinate, stubborn, dogged.
Synonyms Rigid, stiff.
Not to be changed or altered; unalterable; not permitting variation.
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 flexible; incapable of bending or of being bent; rigid: as, an inflexible rod.

Fossilized, Flinty, Stiffened, Adamant, Inexorable, Ironclad, Adamantine, Stiff, Uncompromising, Unadaptable, Unyielding, Ossified, Unbending, Intransigent, Rigid

Fossilized, Flinty, Stiffened, Adamant, Inexorable, Ironclad, Adamantine, Stiff, Uncompromising, Unadaptable, Unyielding, Ossified, Unbending, Intransigent, Rigid

For Verizon to be so inflexible is horrible!
In trust planning, irrevocable no longer means inflexible.
We called Regents and the staff was inflexible.
An inflexible, categorical rule neglects these additional considerations.
Offers fall apart when both sides are inflexible.
Long cable is inflexible and gets kinked easily.
Development and validation of the inflexible eating questionnaire.
Identified by Dialogue Partners: The dialogue partners reported that inflexible federal workplace policies create the following issues for womenwho have caregiving responsibilities: Inflexible workpla
For example, a family which is rigidly inflexible toward relationship roles would be expected to be rigidly inflexible in the disciplining of children.
Inflexible parents, inflexible kids: A sixyear longitudinal study of parenting style and the development of psychological flexibity in adolescence.

The cities are adamant Trump should pay up.
Ugarte was adamant that he go with me.
But she would be adamant about nature study.
Jurgen is adamant that the decision was wrong.
For access to adamant gloves and fairy rings.
Republicans have grown more adamant in embracing them.
The smaller colonies were adamant that it should.
Simon had been adamant about her accepting it.
Stevens was adamant, however, about going in September.
No matter how adamant they were about justification by faith, the New Testament writers were just as adamant about obedience and a righteous life.