The Correct spelling is: phenomenal
Common misspellings of the word phenomenal are:
How do you spell phenomenal?. It is not phenomenonal
phenomenally pheÂ·nom'eÂ·nalÂ·ly adv.
- Of, relating to, or constituting phenomena or a phenomenon.
- Extraordinary; outstanding: a phenomenal feat of memory.
- Philosophy. Known or derived through the senses rather than through the mind.