adj.婴儿(期)的,<贬>幼稚的,孩子气的,婴儿的
Pearl was a born outcast of the infantile world.
珠儿生来便是那婴孩天地的弃儿.
This kind of humour is infantile and boring.
这种幽默既幼稚又无聊。
Some infantile actions survive into adulthood.
某些婴儿期的行为一直保持到成年期.