THESAURUS
Junior
adolescent, after, assistant, attendant, baby, cadet, cog, common, commonality, commonalty, consecutive, creature, demeaning, disadvantaged, employee, ensuing, fledgling, flunky, follower, following, freshman, helper, hoi polloi, hopeful, humble, in the shade, infant, inferior, infra dig, juvenal, juvenile, later, less, lesser, lightweight, lineal, low, lower, lower class, lower orders, lowly, masses, midshipman, minor, modest, ordinary, pawn, plebe, posterior, pubescent, puisne, right-hand man, sapling, second fiddle, second rank, second string, secondary, senior, sequent, servant, servile, slip, soph, sophomore, sprig, stripling, sub, subaltern, subject, subordinate, subsequent, subservient, succeeding, successive, teenager, teener, teenybopper, third rank, third string, third stringer, undergrad, undergraduate, underling, underprivileged, understrapper, upperclassman, vulgar, yes-man, young hopeful, young person, younger, youngest, youngling, youngster, youth
ROGET THESAURUS
Junior
Youth
N
youth, juvenility, juvenescence, juniority, infancy, babyhood, childhood, boyhood, girlhood, youthhood, incunabula, minority, nonage, teens, tender age, bloom, cradle, nursery, leading strings, pupilage, puberty, pucelage, prime of life, flower of life, springtide of life, seedtime of life, golden season of life, heyday of youth, school days, rising generation, young, youthful, juvenile, green, callow, budding, sappy, puisne, beardless, under age, in one's teens, in statu pupillari, younger, junior, hebetic, unfledged, youth on the prow and pleasure at the helm, youth a the glad season of life.
Learner
N
learner, scholar, student, pupil, apprentice, prentice, journeyman, articled clerk, beginner, tyro, amateur, rank amateur, abecedarian, alphabetarian, alumnus, eleve, recruit, raw recruit, novice, neophyte, inceptor, catechumen, probationer, seminarian, chela, fellow-commoner, debutant, intern, resident, schoolboy, fresh, freshman, frosh, junior soph, junior, senior soph, senior, sophister, sophomore, questionist, undergraduate, graduate student, law student, medical student, pre-med, post-doctoral student, post-doc, matriculated student, part-time student, night student, auditor, class, grade, seminar, form, remove, pupilage, disciple, follower, apostle, proselyte, fellow-student, condisciple, school, in statu pupillari, in leading strings, practise makes perfect.