Synonyms for Inexperienced (same or very similar meaning)
WordNet sense 1 (not tried or tested by experience):
untried, young
WordNet sense 2 (not having had extensive practice):
unversed
WordNet sense 3 (not initiated; deficient in relevant experience):
naive
WordNet sense 4 (lacking training or experience):
new, raw
WordNet sense 5 (young and inexperienced):
callow
WordNet sense 6 (lacking practical experience or training):
inexperient
From the ODE community, based on WordNet
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