детски означава в английски

childish▼(suitable for a child)
adjective
[UK: ˈtʃaɪl.dɪʃ] [US: ˈtʃaɪl.ˌdɪʃ]

infantile▼(pertaining to infants)
adjective
[UK: ˈɪn.fən.taɪl] [US: ˈɪn.fən.təl]

poliomyelitis [poliomyelitides]▼(infection by the poliovirus)
noun
[UK: ˌpəʊ.lɪəʊ.ˌmaɪə.ˈlaɪ.tɪs] [US: ˌpoʊ.lɪo.ʊ.ˌmaɪə.ˈlaɪ.tɪs]