unpenetrating
/(ˌ)ʌnˈpɛnɪtreɪtɪŋ/adjective
Not penetrating; especially lacking insight or acuity.
Origin
Early 18th century; earliest use found in Jeremy Collier (1650–1726), anti-theatrical polemicist and bishop of the nonjuring Church of England. From un- + penetrating.
- alumic
- alumina
- aluminate
- aluminated
- alumine
- aluming
- aluminian
- aluminic
- aluminide
- aluminiferous
- aluminise
- aluminite
- aluminium
- aluminium brass
- aluminium bronze
- aluminium chloride
- aluminium foil
- aluminium hydroxide
- aluminium smelter
- aluminium sulphate
- aluminize
- alumino-ferric
- aluminography
- alumino-magnesian
- aluminosilicate