Definitions for: Simple-minded

[adj] lacking mental capacity and devoid of subtlety
[adj] lacking subtlety and insight; "a simple-minded argument"

Webster (1913) Definition: Sim"ple-mind`ed, a.
Artless; guileless; simple-hearted; undesigning;
unsuspecting; devoid of duplicity. --Blackstone. --
Sim"ple-mind`ed*ness, n.

Synonyms: dim-witted, half-witted, naif, naive, retarded, simple