indefinable /in-di-fīˈnə-bl/

1. That cannot be defined
2. Hard to identify or describe

• wondered
• wonderer
• wonderers
• wonderful
• wonderfully
• wonderfulness
• wonderfulnesses
• wondering
• wonderingly
• wonderings
• wonderland
• wonderlands
• wonderment
• wonderments
• wondermonger
• wondermongering
• wondermongerings
• wondermongers
• wonderous
• wonders
• wonder-stricken
• wonder-struck
• wonderwork
• wonder-worker
• wonder-workers