smashingUKold-fashioned
swellUSold-fashionedinformal
 SMART Vocabulary: related words and phrases 
 Informal words for good 
A-OK
amazeballs
apple pie
awesomesauce
badass
dank
juicy
killer
knock
knock spots off somethingidiom
like a bossidiom
lit
out of sightidiom
rule OKidiom
safe
shabby
shit hot
sight
smashing
steal
cracking
noun[ U ]
 specializeduk /ˈkræk.ɪŋ/ us /ˈkræk.ɪŋ/
a process in which large molecules of a hydrocarbon are broken down into smaller molecules裂化,裂解
 SMART Vocabulary: related words and phrases 
 Physical & chemical processes 
absorbable
absorptive
absorptive capacity
absorptivity
acidification
endothermic reaction
excitation
excite
exergonic
exothermic
exothermic reaction
fermentation
impregnate
reabsorb
react
reboil
recondense
redox
scald
vaporize
cracking | American Dictionary
cracking
noun[ U ]
us/ˈkræk·ɪŋ/
chemistry
a process in which large molecules of a hydrocarbon are broken down into smaller molecules