the things that you have imagined, expected, or hoped for.
His company has succeeded beyond his wildest dreams.Never in my wildest dreams did I think she'd actually carry out her threat.
wildest dreams
All the things that one has ever imagined or hoped. Always used in a phrase such as "in (one's) wildest dreams" or "never in (one's) wildest dreams." Never in my wildest dreams did I think that someday I'd be living in Paris!