What is the Greek meaning of word wonderful?

There isn't a single Greek word that perfectly translates to "wonderful" in all its nuances. The English word encompasses awe, amazement, and delight. To capture the meaning in Greek, you'd need to choose a word or phrase depending on the specific shade of "wonderful" you intend:

* θαυμάσιος (thavmásios): This comes closest to the core meaning of "wonderful" as in "amazing" or "marvelous." It implies admiration and wonder.

* υπέροχος (ypérochos): This translates to "excellent," "superb," or "magnificent," and can convey a sense of wonderfulness if the context involves something of high quality or beauty.

* φантаστικός (fantastikós): This word means "fantastic," which overlaps significantly with "wonderful," especially in the sense of being extraordinary or unbelievable.

* αξιοθαύμαστος (axiothávmastos): This translates to "worthy of wonder" or "admirable," suggesting something deserving of awe and praise.

Therefore, there's no single equivalent. The best choice depends on the context. You'd choose the word that best fits the specific feeling of wonder or admiration you want to express.