1. The plural of pinheadedness; instances or qualities of being stupid, foolish, or lacking intelligence.
Usage: informal; derogatory; plural form

Examples

• The pinheadednesses displayed by the characters in that comedy film made the audience laugh.
• His repeated pinheadednesses during the meeting frustrated his colleagues.
• The novel satirizes the pinheadednesses of the ruling class.
• We couldn't believe the pinheadednesses of some of the decisions made by the committee.