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

See also: stupid

• unreproducible
• unreproducibly
• unreproved
• unrequested
• unrequited
• unresentful
• unreserved
• unreservedly
• unresistant
• unresisting
• unresolvable
• unresolved
• unrespectability
• unrespectable
• unresponsive
• unresponsiveness
• unrest
• unrested
• unrestrained
• unrestrainedly
• unrestraint
• unrestricted
• unrestrictive
• unretentive
• unretrievable