https://thrax.mpiwg-berlin.mpg.de/mpiwg-mpdl-cms-web/lt/GetDictionaryEntries?query=insuperabile&language=ita&inputType=lemma&outputFormat=html&outputType=morphFull
WordInfo for: "insuperabile"
https://loserrules.blogspot.com/2011/10/insuperabile.html?m=0
LoseRRuleS: insuperabile.