Hunky-dory is a slang term that generally means everything is going well and there is no problem at all. However, there are a few other phrases and synonyms to describe a smooth situation. Some other phrases might include "smooth sailing," "all under control," "everything in order," or "fine and dandy." You can also use terms like "perfect," "satisfactory," "pleasant," or "untroubled" to indicate that everything is smooth and working out fine. Ultimately, many words go well with the term hunky-dory, but they all indicate smooth sailing and a trouble-free situation.