Strong's #56: agnosia (pronounced ag-no-see'-ah)

from 1 (as negative particle) and 1108; ignorance (properly, the state):--ignorance, not the knowledge.

Thayer's Greek Lexicon:

̓́

agnōsia

1) not knowing, ignorance

Part of Speech: noun feminine

Relation: from G1 (as negative particle) and G1108

Citing in TDNT: 1:116, 18

Usage:

This word is used 2 times:

 

1 Corinthians 15:34: "not; for some have not the knowledge of God: I speak this to"
1 Peter 2:15: "that with well doing ye may put to silence the ignorance of foolish men:"