How to say "negative" in Japanese

Choosing the right word
  • na-adjectiveCovers the psychological sense: negative thinking, a negative attitude, a negative person — pessimistic, dwelling on the bad side. This is the word for 'negative' said of people, moods, and opinions.
  • 負ふCommon
    no-adjectiveThe mathematical sense: negative numbers and quantities, the minus side of zero. Not the word for a negative attitude or a negative test result.
    あ、あれ?なんか・・・すっごい負ふのオーラを感かんじますよ?↗
    E-eh? I somehow seem to feel a very threatening aura...
  • 陰性いんせいCommon
    no-adjectiveUsed for a negative result, especially on a medical test: the test came back negative. It belongs to results and diagnoses, not to personalities or numbers.
    ツベルクリン反応はんのうは陰性いんせいでした。↗
    The result of the tuberculin test was negative.
  • 消極しょうきょくCommon
    prenominal modifierFor 'negative' meaning pessimistic, this is seldom the word you want: it really means 'passive' or 'conservative' — holding back rather than seeing the bad side. It rarely stands alone.
  • ネガJLPT N1approx.Common
    nounAn abbreviation for the photographic negative: developed film in which light and dark are reversed. It is not used for negative attitudes, numbers, or test results.

Choose 「ネガティブ」 for negative thinking and attitudes, 負 for negative numbers, 陰性 for negative test results, 消極 when 'negative' really means passive, and 「ネガ」 for photographic negatives.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
See also

JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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