How to say "optimism" in Japanese

Choosing the right word
  • 楽天らくてんCommon
    nounCovers optimism in the sense of a sunny, untroubled outlook on life; it often characterizes a person as naturally optimistic and easygoing rather than describing a deliberate judgment about outcomes.
  • 楽観らっかんJLPT N1approx.Common
    noun, suru verb, transitive verbCovers optimism as taking an optimistic view of a situation or future prospects, often used when saying one expects things to go well, or warns against being too optimistic about a problem.
    父ちちは私の楽観らっかんを乱みださないことにした。↗
    My father chose not to disturb my optimism.

Use 楽観 for optimism as an attitude or judgment about how things will turn out; 楽天 leans toward a cheerful, easygoing optimistic disposition, often describing a person's character.

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

Japanese equivalents

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

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