fledged, mature, old, ripe

mature, infantile, childish, thoughtless, unintelligent, naive, stupid, dumb, undisciplined, sophomoric, retarded, untalented, egotistical, egocentric, maladjusted, arrogant, distractible, inarticulate, selfish, callow, babyish, impulsive, ignorant, petulant, impetuous, unsophisticated, asocial, timid, unprofessional, narcissistic, incommunicative, uncreative, unthoughtful, unserious, obnoxious, puerile, unconfident, insolent, precocious, promiscuous, unathletic, conceited, brainless, gawky, unknowledgeable, snotty, unlikeable, stunted, overemotional, uninformed, incorrigible, misguided, asexual, irrational, uncompassionate, inexperienced, maladapted, foolish, brained, clueless, uncoordinated, impressionable, overcritical, unaffectionate, disorganized, scrawny, cocky, egoistical, whiny, shortsighted, sissified, jejune, pubescent, cloddish, deficient, pathetic, dopey, tactless, knuckleheaded, aberrant, inconsiderate, silly, insensitive, underdeveloped, antisocial, untrusting, prepubescent, irresponsible, uncultured, intemperate, meanspirited, moronic, oversensitive, uneducated, unproven, spineless, excitable, unmusical, flighty, insecure, undifferentiated, adolescent, ex, human, non, broods, embryos, simple, specimens, tadpoles, buds, juveniles, litters, oocytes, small, sperm, tubers, animals, aphids, campers, crickets, customers, nourished, undernourished, hyperactive, predisposed, susceptible, uninfected, fullgrown, healthy, obese, grown, infected, senescent, treated, undersized, adult, diseased, euthyroid, hypothyroid

., acute lymphoblastic leukemia, acute lymphocytic leukemia, artichoke heart, baby, blastocytoma, blastoma, bud, child, cucurbita pepo melopepo, embryonal carcinosarcoma, external gill, gametocyte, green bean, immaturely, jejunely, larva, larval, lobata, lymphoblast, megaloblastic anaemia, megaloblastic anemia, monoblast, myelocyte, offspring, order lobata, ovule, peter pan, reticulocyte, ringtail, spermatid, summer squash, summer squash vine, swaddling clothes, young, young mammal, youth

boyish, boylike, childlike, childly, early, embryonal, embryonic, formative, girlish, green, inchoative, infant, junior, juvenile, little, newborn, prepubertal, prepupal, pupal, puppyish, puppylike, schoolboyish, schoolgirlish, teen, teenage, teenaged, tender, unaged, undeveloped, unfeathered, unfledged, unformed, unripe, unripened, vernal, vulnerable, youngish, youthful