thickheaded - Wordage.info - Free Thesaurus Tool for Word Discovery - Expanded Thesaurus, Reverse Dictionary Lookup

opaque collapse: not clear; not transmitting or reflecting light or radiant energy; "opaque windows of the jail"; "opaque to X-rays"; not clearly understood or expressed

obtuse collapse: lacking in insight or discernment; "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"- Jasper Griffin; of an angle; between 90 and 180 degrees; of a leaf shape; rounded at the apex

dense collapse: slow to learn or understand; lacking intellectual acuity; "so dense he never understands anything I say to him"; "never met anyone quite so dim"; "although dull at classical learning, at mathematics he was uncommonly quick"- Thackeray; "dumb officials make some really dumb decisions"; "he was either normally stupid or being deliberately obtuse"; "worked with the slow students"; having high relative density or specific gravity; "dense as lead"; hard to pass through because of dense growth; "dense vegetation"; "thick woods"; permitting little if any light to pass through because of denseness of matter; "dense smoke"; "heavy fog"; "impenetrable gloom"

stupid collapse: a person who is not very bright; "The economy, stupid!"; lacking or marked by lack of intellectual acuity

foolish collapse: devoid of good sense or judgment; "foolish remarks"; "a foolish decision"

mindless collapse: requiring little mental effort; "mindless tasks"; lacking the thinking capacity characteristic of a conscious being; "the shrieking of the mindless wind"; not marked by the use of reason; "mindless violence"; "reasonless hostility"; "a senseless act"

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