childish

Definition of Childish in English :

1. childish, infantile

indicating a lack of maturity

Example Sentences:
'childish tantrums'
'infantile behavior'

WordNet Lexical Database for English. Princeton University. 2010.

Childish

adjective

1.

in the manner of, belonging to, or suitable to a child

2.

foolish or petty; puerile

childish fears

adjective

1.

of, like, or characteristic of a child

2.

not fit for an adult; immature; silly

adj.

1. Of, relating to, or suitable for a child or childhood: a high, childish voice; childish nightmares.

2. Marked by or indicating a lack of maturity; puerile: tired of your childish pranks. See Synonyms at young.