impalpable /im-palˈpə-bl/

1. Not perceivable or detectable by touch
2. Not capable of being comprehended or grasped
3. Extremely fine-grained

impalpabilˈity noun

• diameter
• diameters
• diametral
• diametrally
• diametric
• diametrical
• diametrically
• diamine
• diamines
• diamond
• diamond anniversaries
• diamond anniversary
• diamondback
• diamondback moth
• diamondback moths
• diamondbacks
• diamond-beetle
• diamond-beetles
• diamond bird
• diamond birds
• Diamond-Blackfan anaemia
• Diamond-Blackfan anaemias
• diamond-cut
• diamond cut diamond
• diamond dove