fierce

As adjectives the difference between fierce and substantial

is that fierce is extremely violent, severe, ferocious or savage while substantial is having to substance; actually existing; real; as, substantial life.

As a noun substantial is

anything having substance; an essential part.

Penetrating is a related term of fierce.

As adjectives the difference between penetrating and fierce

is that penetrating is able to pierce or penetrate while fierce is extremely violent, severe, ferocious or savage.

As a verb penetrating

is .

Shrewd is a related term of fierce.

As adjectives the difference between shrewd and fierce

is that shrewd is showing clever resourcefulness in practical matters while fierce is extremely violent, severe, ferocious or savage.

Uncivil is a related term of fierce.

As adjectives the difference between uncivil and fierce

is that uncivil is not civilized; savage; barbarous; uncivilized while fierce is extremely violent, severe, ferocious or savage.

Quick is a related term of fierce.

As adjectives the difference between quick and fierce

is that quick is moving with speed, rapidity or swiftness, or capable of doing so; rapid; fast while fierce is extremely violent, severe, ferocious or savage.

As an adverb quick

is (colloquial) with speed, quickly.

As a noun quick

is raw or sensitive flesh, especially that underneath finger and toe nails.

As a verb quick

is to amalgamate surfaces prior to gilding or silvering by dipping them into a solution of mercury in nitric acid.

Untaught is a related term of fierce.

As adjectives the difference between untaught and fierce

is that untaught is not taught while fierce is extremely violent, severe, ferocious or savage.

Afflictive is a related term of fierce.

As adjectives the difference between afflictive and fierce

is that afflictive is that causes physical or mental pain while fierce is extremely violent, severe, ferocious or savage.

Fierce is a related term of outrageous.

As adjectives the difference between fierce and outrageous

is that fierce is extremely violent, severe, ferocious or savage while outrageous is cruel, violating morality or decency; provoking indignation or affront.

Impertinent is a related term of fierce.

As adjectives the difference between impertinent and fierce

is that impertinent is insolent, ill-mannered while fierce is extremely violent, severe, ferocious or savage.

As a noun impertinent

is an impertinent individual.

Ignorant is a related term of fierce.

As a noun ignorant

is ignorant person, ignoramus.

As an adjective fierce is

extremely violent, severe, ferocious or savage.