Inflexible is a related term of austere.

As adjectives the difference between inflexible and austere

is that inflexible is not flexible; not capable of bending or being bent; stiff; rigid; firm; unyielding while austere is austere.

Particularly is a synonym of markedly.

As adverbs the difference between particularly and markedly

is that particularly is (focus) especially, extremely while markedly is .

As verbs the difference between leading and supreme

is that leading is present participle of lang=en while supreme is to divide a citrus fruit into its segments, removing the skin, pith, membranes, and seeds.

As adjectives the difference between leading and supreme

is that leading is providing guidance or direction while supreme is dominant, having power over all others.

As nouns the difference between leading and supreme

is that leading is an act by which one is led or guided while supreme is a breast of chicken or duck with the wing bone attached.

As a proper noun Supreme is

the Supreme Being; the Almighty; God.

Pack is a related term of confederation.

As a noun pack

is package, bundle, bunch, (unwieldy) bag or pack can be rabble, mob, vermin, rascals.

As a proper noun confederation is

in canada, the federal union of provinces and territories which formed canada, beginning with new brunswick, nova scotia, ontario, and quebec, and later including all the others.

Like_a_flash is likely misspelled.

Like_a_flash has no English definition.

As an adverb speedily

is in a speedy or fast manner.

Boundary is a related term of word.

As nouns the difference between boundary and word

is that boundary is the dividing line or location between two areas while word is scripture; the bible.

Foul is a related term of acrimonious.

As a noun foul

is foul (a breach of the rules of a game).

As an adjective acrimonious is

angry, acid, and sharp in delivering argumentative replies: bitter; mean-spirited; sharp in language or tone.

Scrimpy is a related term of stinted.

As an adjective stinted is

(dated) constrained; restrained; confined.

As a verb stinted is

(stint).

Tightness is a related term of strangling.

As nouns the difference between tightness and strangling

is that tightness is the quality or degree of being tight while strangling is the crime of killing by strangling.

As a verb strangling is

.

Manifest is a related term of out.

As nouns the difference between manifest and out

is that manifest is manifesto while out is .