monumentally

/mษ’njสŠหˆmษ›ntษ™li/

IPA: /M AA0 N Y AH0 M EH1 N T AH0 L IY0/

adverb
  1. 1

    To a monumental extent; very greatly.

    โ€œClimbing this mountain naked was a monumentally stupid idea!โ€

Source: https://en.wiktionary.org/wiki/monumentally