sophomore

adj 0.829

sophical

adj 0.667

sophistical

adj 0.642

sophisticate

adj 0.633

sophisticated

adj 0.609

immature

adj 0.608

puerile

adj 0.599

adolescent

adj 0.590

unsophisticated

adj 0.577

unmatured

adj 0.566

teenage

adj 0.561

schoolboy

adj 0.560

junior

adj 0.549

childish

adj 0.546

pubescent

adj 0.536

teenaged

adj 0.535

preadolescent

adj 0.532

jejune

adj 0.531

precocious

adj 0.531

juvenile

adj 0.531

rooky

adj 0.528

postpubescent

adj 0.528

youthful

adj 0.523

puberulous

adj 0.521

amateurish

adj 0.516

smart-alecky

adj 0.513

rookie

adj 0.512

infantile

adj 0.507