unchildlike
adjective
un·child·like ˌən-ˈchī(-ə)l(d)-ˌlīk 
: not resembling or appropriate to a child or childhood : not childlike
an unchildlike seriousness
… her sad, unchildlike expression …
Louisa May Alcott
Louisa May Alcott
Word History
First Known Use
circa 1775, in the meaning defined above
unchildlike
adjective
as in adult
Synonyms & Similar Words
Relevance
- adult
- knowing
- cosmopolitan
- sophisticated
- worldly
- experienced
- grown-up
- smart
- mature
- worldly-wise
Antonyms & Near Antonyms
- childish
- infantile
- juvenile
- immature
- adolescent
- puerile
- boyish
- girlish
- childlike
- unsophisticated
- simple
- babyish
- innocent
- jejune
- kiddish
- naive
- simplistic
- naïve
- girlie
- girly
- bratty
- brattish
- spring snow
- spring snowflake
- spring starflower
- spring stay
- spring steel
- spring switch
- spring temper
- spring to action
- spring to life
- spring to mind
- spring tool
- spring tooth
- spring training
- spring up
- Spring Valley
- spring vetch
- spring vetchling
- spring vise
- spring wagon
- spring wagons
- spring washer
- spring water
- spring wheat
- spring-clean
- spring-cleaning