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dullness▼(quality of being slow to understand)noun[UK: ˈdʌl.nəs] [US: ˈdʌl.nəs]
unreasonableness▼noun[UK: ʌn.ˈriːz.nəb.l̩] [US: ʌn.ˈriːz.nəb.l̩]
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