How to say "feasible" in Japanese

• 可能かのうJLPT N3approx.Common
  na-adjective, nounThe broad, common word for 'possible; practicable', and the default when English 'feasible' simply means that something can be done. It states possibility in general, without special emphasis on a plan actually being carried out.
  男の子おとこのこへのしつけは可能かのうである。↗

  Boys can be trained to behave.
• 実現可能じつげんかのう
  na-adjectiveLiterally 'can be realized', this less common word covers 'feasible; viable; achievable': a plan or proposal that can actually be carried out. Use it to stress realizability rather than mere possibility.
• 現実性げんじつせい
  nounA noun for the quality of being realistic or practical; it matches 'feasible' only indirectly, in phrases saying a plan has this quality. It is seldom the direct word you want; really it means 'realism'.

Use 可能 for the plain sense 'possible, can be done'; use 実現可能 when a plan or idea can actually be achieved; 現実性 is a noun for realism and matches 'feasible' only indirectly.

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

• 可能かのうpossible
• 実現可能じつげんかのうfeasible
• 現実性げんじつせいrealistic