expertness

Cunning is a synonym of expertness.

As nouns the difference between cunning and expertness

is that cunning is (obsolete) knowledge; learning; special knowledge (sometimes implying occult or magical knowledge) while expertness is the state of being expert; skill or proficiency.

As an adjective cunning

is sly; crafty; clever in surreptitious behaviour.

Promptitude is a related term of expertness.

As nouns the difference between promptitude and expertness

is that promptitude is the quality of being prompt; alacrity while expertness is the state of being expert; skill or proficiency.

Expertness is a related term of effortlessness.

As nouns the difference between expertness and effortlessness

is that expertness is the state of being expert; skill or proficiency while effortlessness is the state of being effortless; facility.

Nimbleness is a related term of expertness.

As nouns the difference between nimbleness and expertness

is that nimbleness is the quality of being nimble while expertness is the state of being expert; skill or proficiency.

Endowment is a related term of expertness.

As nouns the difference between endowment and expertness

is that endowment is something with which a person or thing is endowed while expertness is the state of being expert; skill or proficiency.

As nouns the difference between sophistication and expertness

is that sophistication is enlightenment or education while expertness is the state of being expert; skill or proficiency.

Talent is a related term of expertness.

As nouns the difference between talent and expertness

is that talent is talent while expertness is the state of being expert; skill or proficiency.

Expertness is a related term of affability.

As nouns the difference between expertness and affability

is that expertness is the state of being expert; skill or proficiency while affability is the state or quality of being affable, friendly, or approachable.

Expedition is a related term of expertness.

As nouns the difference between expedition and expertness

is that expedition is the act of expediting or hurrying while expertness is the state of being expert; skill or proficiency.

Expertness is a related term of tact.

As nouns the difference between expertness and tact

is that expertness is the state of being expert; skill or proficiency while tact is the sense of touch; feeling.

As a verb tact is

(psychology) to use a tact (a kind of verbal operant; see noun sense).