- 2Significato: complexinvolved intricate abstract obscuredifficult perplexing puzzling abstruse
- 3Significato: pervertedperplexing distorted tangledwrong erroneous twisted
- 4Significato: trickyperplexing captious treacherous subtlewily loaded confusing
- 5Significato: troublesomebothersome difficult perplexing formidable thorny
- 6Significato: annoyingbothersome harassing tryingperplexing vexatious troublesome
- 7Significato: propertycomplicated complex formidable difficultintricate perplexing puzzling hard
- 8Significato: difficultabstruse perplexing hard abstractheavy complicated puzzling