Antonyms of adj childlike

2 senses of childlike

Sense 1
childlike, childly -- (befitting a young child; "childlike charm")

INDIRECT (VIA young) -> old -- ((used especially of persons) having lived for a relatively long time or attained a specific age; "his mother is very old"; "a ripe old age"; "how old are you?")

Sense 2
childlike, wide-eyed, round-eyed, dewy-eyed, simple -- (exhibiting childlike simplicity and credulity; "childlike trust"; "dewy-eyed innocence"; "listened in round-eyed wonder")

INDIRECT (VIA naive) -> sophisticated -- (having or appealing to those having worldly knowledge and refinement and savoir-faire; "sophisticated young socialites"; "a sophisticated audience"; "a sophisticated lifestyle"; "a sophisticated book")

Similarity of adj childlike

2 senses of childlike

Sense 1
childlike, childly -- (befitting a young child; "childlike charm")
       => young (vs. old), immature -- ((used of living things especially persons) in an early period of life or development or growth; "young people")

Sense 2
childlike, wide-eyed, round-eyed, dewy-eyed, simple -- (exhibiting childlike simplicity and credulity; "childlike trust"; "dewy-eyed innocence"; "listened in round-eyed wonder")
       => naive (vs. sophisticated), naif -- (marked by or showing unaffected simplicity and lack of guile or worldly experience; "a teenager's naive ignorance of life"; "the naive assumption that things can only get better"; "this naive simple creature with wide friendly eyes so eager to believe appearances")