immature

not fully developed or grown up; childish

inmaduro, infantil

• be immature

Collocations immature behavior · immature attitude

• He has an immature sense of humor.

  Él tiene un sentido del humor inmaduro.

not ready for something; not suitable or appropriate

inapropiado, prematuro

• be immature for sth

Collocations immature decision · immature situation

• The project is still too immature to launch.

  El proyecto aún está demasiado prematuro para lanzarlo.