lesser, as in size, extent, or importance, or being or noting the lesser of two

a minor share.

not serious, important, etc.

a minor wound; a minor role.

having low rank, status, position, etc.

a minor official.

under the legal age of full responsibility.

Education . of or pertaining to a field of study constituting a student's minor.

Music .

(of an interval) smaller by a chromatic half step than the corresponding major interval.

(of a chord) having a minor third between the root and the note next above it.

of or pertaining to the minority.

( initial capital letter ) (of two male students in an English public school who have the same surname) being the younger or lower in standing

Jackson Minor sits over here.

a person under the legal age of full responsibility.

a person of inferior rank or importance in a specified group, class, etc.

Education .

a subject or a course of study pursued by a student, esp. a candidate for a degree, subordinately or supplementarily to a major or principal subject or course.

a subject for which less credit than a major is granted in college or, occasionally, in high school.

Music . a minor interval, chord, scale, etc.

Mathematics . the determinant of the matrix formed by crossing out the row and column containing a given element in a matrix.

( initial capital letter ) Friar Minor.

the minors, Sports . the minor leagues.

to choose or study as a secondary academic subject or course

to major in sociology and minor in art history.

adjective

adult , greater , large , major , significant

noun

adult

adjective

accessory , below the mark , bush-league * , casual , dependent , dinky * , inconsequential , inconsiderable , inferior , junior , lesser , light , low , minus , negligible , paltry , petty , piddling , secondary , second-string , slight , smaller , small-fry , small-time , subordinate , subsidiary , tacky , trifling , trivial , two-bit * , unimportant , younger , lower , minor-league , small , subaltern , under , underage

noun

adolescent , baby , boy , child , girl , infant , junior , juvenile , lad , little one , schoolboy , schoolgirl , teenager , underage , youngster , youth , incidental , insignificant , lesser , little , petty , secondary , slight , small , subordinate , superficial , trivial , unimportant