simple mindedness

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a lack of penetration or subtlety
- they took advantage of her simplicity
• Syn:
simplicity, simpleness
• Derivationally related forms:
simple (for: simpleness), simple-minded (for: simplicity), simple (for: simplicity)
• Hypernyms:
naivete, naivety, naiveness