dandy vs cracking

dandy and cracking both are nouns.

Word	Noun	Adjective	Verb	Adverb
dandy	Yes	Yes	No	No
cracking	Yes	Yes	No	No

As adjectives, dandy and cracking are synonyms defined as:

Other synonyms of dandy include bang-up, bully, corking, great, groovy, keen, neat, nifty, not bad, old, peachy, slap-up, smashing, swell.

dandy (noun)	cracking (noun)
a sailing vessel with two masts; a small mizzen is aft of the rudderpost	the act of cracking something
a man who is much concerned with his dress and appearance	a sudden sharp noise
	the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)

dandy (adjective)	cracking (adjective)
excellent	excellent