1. Old-fashioned and out of date
   - fusty, standpat, unprogressive

See also: conservative

• knowing
• knowingly
• knowingness
• knowledgable
• knowledge
• knowledge base
• knowledge domain
• knowledge economy
• knowledgeability
• knowledgeable
• knowledgeableness
• knowledgeably
• Knowlton's cactus
• known
• Knox
• Knoxville
• knuckle
• knuckle down
• knuckle duster
• knuckle joint
• knuckle sandwich
• knuckle under
• knuckleball
• knucklebones
• knucklehead