The term "anything whatever" is versatile and open-ended, allowing for a variety of possible synonyms. Other phrases that could be used in place of "anything whatever" include "everything and anything," "whatever it takes," "any and all," "any possible thing," and "every possible thing." Additionally, "anything under the sun," "anything at all," "any and every thing," "anything and everything," and "anything imaginable" are all strong options for conveying a similar meaning. These synonyms emphasize the limitless nature of the topic or situation at hand, highlighting the broad range of possibilities available for consideration or action.