Lack of knowledge, education, or intellectual sophistication; absence of common sense; ignorance; foolishness. Sometimes also: cognitive…

Freedom from cunning or artifice; guilelessness, artlessness, simplicity; hence, want of knowledge or sense, ignorance, silliness.

Lack of knowledge or education; ignorance; foolishness; = simpleness, n. 2a. Obsolete (archaic and poetic in later use).

Lack of knowledge, education, or intellectual sophistication; absence of common sense; ignorance; foolishness.

= innocence, n. 3.

Simplicity (in various senses) as a personal quality; esp. guilelessness; lack of knowledge or sophistication.

In extended use. Rawness, inexperience; (also) naivety, gullibility. Cf. green, adj. 8d.

The quality of being insipid. Want of taste or judgement; weakness, folly Obsolete.

Simplicity; silliness. rare.

Simplicity; foolishness; (in later use) esp. an instance of this.

Mental impairment; weakness or diminution of intellectual faculties; an instance of this. Cf. silly, adj. 7. Obsolete.

qualities or behaviour characteristic of a simpleton; the fact of being a simpleton.

qualities or behaviour characteristic of a simpleton or simpletonian; cf. simpletonism n. at simpleton, n. derivatives.

Foolishness, stupidity.