junior

As nouns the difference between supervisor and junior

is that supervisor is (management) a person with the official task of overseeing the work of a person or group while junior is junior (especially a junior sportsman).

As nouns the difference between junior and inferior

is that junior is junior (especially a junior sportsman) while inferior is a person of lower stature to another.

As an adjective inferior is

of lower quality.

As adjectives the difference between junior and undefined

is that junior is younger while undefined is lacking a definition or value.

As a noun junior

is a younger person.

As nouns the difference between old and junior

is that old is age while junior is junior (especially a junior sportsman).

As nouns the difference between junior and expert

is that junior is junior (especially a junior sportsman) while expert is (label) rate assessor.

As nouns the difference between proficient and junior

is that proficient is an expert while junior is junior (especially a junior sportsman).

As an adjective proficient

is good at; skilled; fluent; practiced, especially in relation to a task or skill.

As nouns the difference between undergraduate and junior

is that undergraduate is a student at a university who has not yet received a degree while junior is a younger person.

As adjectives the difference between undergraduate and junior

is that undergraduate is of, relating to, or being an undergraduate while junior is younger.

As adjectives the difference between junior and adept

is that junior is younger while adept is well skilled; completely versed; thoroughly proficient.

As nouns the difference between junior and adept

is that junior is a younger person while adept is one fully skilled or well versed in anything; a proficient; as, adepts in philosophy.

As nouns the difference between junior and novice

is that junior is a younger person while novice is a beginner; one who is not very familiar or experienced in a particular subject.

As an adjective junior

is younger.

As adjectives the difference between junior and executive

is that junior is younger while executive is designed or fitted for execution, or carrying into effect.

As nouns the difference between junior and executive

is that junior is a younger person while executive is a title of a chief officer or administrator, especially one who can make significant decisions on her/his own authority.