proficiency

Proficiency is a related term of efficacy.

As nouns the difference between proficiency and efficacy

is that proficiency is ability, skill, competence while efficacy is (uncountable) ability to produce a desired amount of a desired effect.

As nouns the difference between proficiency and quickness

is that proficiency is ability, skill, competence while quickness is rapidity of movement or activity; agility or dexterity.

Proficiency is a related term of proneness.

As nouns the difference between proficiency and proneness

is that proficiency is ability, skill, competence while proneness is the quality or state of being prone, or of bending downward; as, the proneness of beasts is opposed to the erectness of man.

Proficiency is a related term of adroitness.

As nouns the difference between proficiency and adroitness

is that proficiency is ability, skill, competence while adroitness is displays of skillfulness or ease of ability.

Feat is a related term of proficiency.

As nouns the difference between feat and proficiency

is that feat is a relatively rare or difficult accomplishment while proficiency is ability, skill, competence.

As an adjective feat

is (archaic) dexterous in movements or service; skilful; neat; pretty.

As a verb feat

is (obsolete) to form; to fashion.

Perception is a related term of proficiency.

As nouns the difference between perception and proficiency

is that perception is organization, identification, and interpretation of sensory information while proficiency is ability, skill, competence.

Clearheadedness is a related term of proficiency.

As nouns the difference between clearheadedness and proficiency

is that clearheadedness is the quality of being clearheaded while proficiency is ability, skill, competence.

As nouns the difference between ingenuity and proficiency

is that ingenuity is the ability to solve difficult problems, often in original, clever, and inventive ways while proficiency is ability, skill, competence.

As nouns the difference between sagacity and proficiency

is that sagacity is the quality of being sage, wise, or able to make good decisions while proficiency is ability, skill, competence.

Proficiency is a related term of illustriousness.

As nouns the difference between proficiency and illustriousness

is that proficiency is ability, skill, competence while illustriousness is the state of being illustrious.