pinheadedness
Having a head that is unusually tapered or smallHaving a head that is unusually tapered or small.
Meaning
2 senses(informal, uncountable)Having a head that is unusually tapered or small.
(slang, uncountable)Foolishness; ignorance.
Origin
From pinheaded + -ness.From pinheaded + -ness.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable