Immature or childish
The definition of puerile is something characteristic of or related to a child, especially silly, trivial or childish behavior.
Being in an early period of life or growth; not old
Sickly or bilious, as from illness, fear, etc.
Marked by or suggesting a lack of normal maturity:
Lacking worldly experience and understanding, especially:
Lacking the usual or appropriate covering or clothing; naked:
(Archaic) Unripe or immature.
Of or relating to infants or infancy.
Growing in marshes
Of a bird that has yet to develop its wings and feathers and become able to fly
Characteristic of young people.
Having reached full natural growth or development:
Having learned from experience; made wise, competent, etc. by experience
Suitable for or appealing to the tastes of sophisticates:
New and untried or inexperienced:
Find another word for callow. In this page you can discover 30 synonyms, antonyms, idiomatic expressions, and related words for callow, like: juvenile, shallow, puerile, young, green, immature, ignorant, inexperienced, naive, bare and crude.