tense, solid, hard, reliable, tight

Radicals

• 緊張【きんちょう】
  tension, strain, nervousness, stress, tensions (between countries, groups, etc.), tonus, muscle tone
• 緊急【きんきゅう】
  urgency, emergency
• 緊密【きんみつ】
  rigour, rigor, closeness, compactness, tightly knit
• 緊迫【きんぱく】
  tension, strain
• 緊縮【きんしゅく】
  shrinkage, contraction, economy, retrenchment
• 緊要【きんよう】
  momentous, exigent, urgent, important, vital
• 喫緊【きっきん】
  urgent, pressing, exigent
• 緊急事態【きんきゅうじたい】
  state of emergency, emergency, crisis
• 緊張感【きんちょうかん】
  feeling of tension, air of tension, tension, nervousness