1. ((informal) stupid, slow witted or dull) stupid
   - blockheaded, boneheaded, duncical, fatheaded, loggerheaded, thick, thickheaded, thick-skulled, wooden-headed, birdbrained, thick-witted

See also: stupid

• bitter-bark
• bittercress
• bitterish
• bitterly
• bittern
• bitterness
• bitternut
• bitternut hickory
• bitterroot
• bitters
• bittersweet
• bittersweet chocolate
• bittersweet nightshade
• bitterweed
• bitterwood
• bitterwood tree
• bitthead
• bittie
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• bitumen
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• bituminise
• bituminize
• bituminoid