purblind

Words with a similar base: purblind

'purblind'

[dim-sighted.s.01] as in: having greatly reduced vision

'purblind'

[obtuse.s.02] as in: lacking in insight or discernment; ; - Jasper Griffin

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Examples:
too obtuse to grasp the implications of his behavior
a purblind oligarchy that flatly refused to see that history was condemning it to the dustbin