ETYM French intransigeant (cf. Spanish intransigente); pref. in- not + Latin transigere to come to an agreement; trans across + agere to lead, act.
Refusing compromise; uncompromising; irreconcilable.
Uncompromising (person); radical.

ETYM Latin obstinatus, p. p. of obstinare to set about a thing with firmness, to persist in; ob (see Ob-) + a word from the root of stare to stand. Related to Stand, Destine.
Persisting in a reactionary stand; SYN. stubborn, unregenerate.

ETYM Latin stolidus.
Not easily aroused or excited; dull; impassive; foolish.

1. Obstinately and often perversely self-willed
2. Done deliberately; intentional

1. Of set purpose; self-determined; voluntary.
2. Governed by the will without yielding to reason; obstinate; perverse; inflexible; stubborn; refractory; --.

In an obstinate manner, stubbornly; hard headedly, in an unyielding manner

With premeditated intent, intentionally; stubbornly; determinedly

In a willful manner; SYN. wilfully.