- to treat (a child or adult) like an infant or baby
- to keep in a dependent, infantile stage of development
transitive verbin·fan·til·ized, in·fan·til·iz·ing, in·fan·til·iz·es
- To treat or condescend to as if still a young child: “The Victorian physician infantilized his patient” (Judith Moore).
- To reduce to an infantile state or condition: “It creates a crisis that infantilizes them—causes grown men to squabble like kids about trivial things” (New Yorker).
(third-person singular simple present infantilizes, present participle infantilizing, simple past and past participle infantilized)
infantile + -ize (“make into”)