negative vs optimistic

negative

noun
  • Refusal or withholding of assents; prohibition, veto 

  • A repetition performed with a weight in which the muscle begins at maximum contraction and is slowly extended; a movement performed using only the eccentric phase of muscle movement. 

  • The negative plate of a voltaic or electrolytic cell. 

  • A right of veto. 

  • An unfavorable point or characteristic. 

  • A word that indicates negation. 

  • A negative quantity. 

  • An image in which dark areas represent light ones, and the converse. 

verb
  • To contradict. 

  • To disprove. 

  • To make ineffective; to neutralize, to negate. 

  • To refuse; to veto. 

intj
  • No; nay. 

adj
  • Often preceded by emotion, energy, feeling, or thought: to be avoided, bad, difficult, disagreeable, painful, potentially damaging, unpleasant, unwanted. 

  • Characterized by the presence of features which do not support a hypothesis. 

  • Less than zero degrees Celsius or Fahrenheit. 

  • Damaging; undesirable; unfavourable. 

  • Of or relating to a photographic image in which the colours of the original, and the relations of left and right, are reversed. 

  • Of electrical charge of an electron and related particles 

  • Denying a proposition. 

  • Not positive nor neutral. 

  • HIV negative. 

  • COVID-19 negative. 

  • Pessimistic; not tending to see the bright side of things. 

  • Of a number: less than zero 

  • Metalloidal, nonmetallic; contrasted with positive or basic. 

optimistic

adj
  • Expecting the best in all possible ways. 

  • Allowing other processes to perform transactions on the same data at the same time, and checking for conflicts only when changes need to be written back. 

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