Antonyms for the word "cause wonder" are related to the feelings of clarity, understanding, and familiarity. Words like mundane, ordinary, and predictable stand in stark contrast to the mystery and awe-inspiring effects of things that cause wonder. Additionally, antonyms such as plain or simple can indicate the opposite of the complexity that often accompanies the things that cause wonder. Finally, words like obvious, expected, and anticipated imply a sense of knowing and certainty, further opposed to the curiosity and amazement caused by things that lead to wonder. Overall, the antonyms for "cause wonder" indicate a sense of the ordinary and expected, opposed to the extraordinary and unexpected.