How to spell NONSHALANTYLEY correctly?

The correct spelling for "nonchalantly" is often mistaken as "nonshalantyley". To avoid confusion, it's best to break the word down and remember the correct spelling for each component. "Nonchalant" means coolly unconcerned, and "ly" is added as a suffix to denote an adverb. Thus, the correct spelling is "nonchalantly".