cheaply vs low-key

cheaply

adv
  • For a low score. 

  • In a cheap manner; without expending much money. 

low-key

adv
  • In a low-key or surreptitious manner; secretively; on the down-low. 

  • Kind of. 

adj
  • Dark; characterised by dark tones and muted colours. 

  • Restrained, subtle, not trying to attract attention. 

How often have the words cheaply and low-key occurred in a corpus of books? (source: Google Ngram Viewer )