babyishly

Here, temporal compression implies universal mistrust: just as the move from ugly youth to babyishly pretty young womanhood seems to be from old to young, with the doubly mortal threat of aging again soon, the "now" flattens this development into a single moment.

Mr Brown acknowledges that other countries persuade their best brains into teaching as a career, yet he can't seem to see that anybody with brains wouldn't want to teach dumbed-down GCSE courses, with their childish syllabuses and their babyishly simple questions, based on ignorant opinion rather than knowledge.

She has begun to act babyishly again and is having tantrums.