inauspicious vs lucky

inauspicious

adj

  • Not auspicious; ill-omened 

lucky

adj

  • Favoured by luck; fortunate; having good success or good fortune. 

  • Producing, or resulting in, good fortune 

noun

  • seven 

How often have the words inauspicious and lucky occurred in a corpus of books? (source: Google Ngram Viewer )