already vs subsequently

already

adv
  • Prior to some specified time, either past, present, or future; by this time; previously. 

  • An intensifier used to emphasize impatience or express exasperation. 

  • So soon. 

subsequently

adv
  • Following, afterwards in either time or place. 

  • Accordingly, therefore (implying a logical connection or deduction), consequently. 

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