impalpable /im-palˈpə-bl/

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

• menorrhagias
• menorrhea
• menorrheas
• menorrhoea
• menorrhoeas
• men-o'-war
• Mensa
• mensal
• mensch
• mensches
• mense
• mensed
• menseful
• menseless
• men-servants
• menses
• mensh
• menshes
• Menshevik
• mensing
• men's movement
• mens rea
• mens sana in corpore sano
• menstrua
• menstrual