How to say "virtual" in Japanese

• 仮想かそうCommon
  suru verb, transitive verb, no-adjectiveRenders 'virtual' as something imagined or supposed rather than physically real; it also means 'potential', as in a hypothetical enemy, and is much used in technical contexts.
  小中学生しょうちゅうがくせいなんて、まだまだ善悪ぜんあくの見分みわけも、現実げんじつと仮想かそうの見分みわけもつかない。↗

  Elementary and primary school children don't yet know good from evil or reality from fiction.
• バーチャルCommon
  na-adjective, prenominal modifierThe katakana loanword, used for 'virtual' in its English-derived senses, especially in computing, games, and entertainment; it overlaps with 仮想 and carries the flavor of the English term.
  非ひヴァーチャルアドレス帳あどれすちょうを数すう分ふん前まえに見みつけたところです。↗

  I couldn't find my non-virtual address book until only a few minutes ago.

For 'virtual' meaning imagined or supposed rather than real, including a potential enemy, use 仮想; 「バーチャル」 is the loanword for English-style 'virtual', especially in computing and entertainment, and the two overlap.

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

• 仮想かそうimagination
• バーチャルvirtual
• 仮想的かそうてきvirtual