void, emptiness, unpreparedness, crack, fissure, untruth

Radicals

• 虚偽【きょぎ】
  falsehood, untruth, lie, misinformation, fallacy (logic)
• 虚構【きょこう】
  fiction, fabrication, concoction
• 虚像【きょぞう】
  virtual image, false image, pretense, pretence
• 虚無【きょむ】
  nihility, nothingness
• 虚脱【きょだつ】
  lethargy, despondency, mental numbness, (physical) collapse, prostration
• 空虚【くうきょ】
  emptiness, hollowness, vacancy, void, inanity, pointlessness, meaninglessness
• 虚飾【きょしょく】
  ostentation, show, affectation
• 虚実【きょじつ】
  falsehood and truth, fiction and fact
• 虚々実々【きょきょじつじつ】
  full of wiles and tricks, match between persons equal in shrewdness mobilizing all the tricks each can muster, shrewdly avoiding the opponent's strong points and attacking its weaknesses
• 虚弱【きょじゃく】
  feebleness, weakness, imbecility
• 虚心【きょしん】
  open-minded, receptive, free from preconceived ideas
• 虚空【こくう】
  empty space, empty sky
• 虚栄【きょえい】
  vanity, vainglory
• 虚礼【きょれい】
  empty (useless) formalities
• 虚言【きょげん】
  falsehood, lie
• 謙虚【けんきょ】
  modest, humble