one-upmanship (noun) one-upmanship: back-and-forth competition
Sinonime: crude, green,
guileless,
inexperienced, infant,
jejune, jellybean,
juvenile,
kid, low tech,
naive, not dry behind ears,
puerile,
raw, sophomore, tenderfoot, unbaked, unfledged, unripe,
unsophisticated, untrained, untried,
youngAntonime: experienced,
initiated,
mature,
sophisticated