Seemingly real but actually not (imaginary)

accumulated knowledge (common sense, understanding, intelligence)

to see something in your mind while you think about it as it is being described (imagine and picture)

Understanding of a topic or idea through learning or experience (information, experience)

 a state of knowing that is a lack of awareness or education (unawareness)

 boring, gloomy place, or state of mind where nothing happens

 low energy, drowsiness, lack of interest (sloth)

to voice an opinion with not much evidence (guess)

To assume as true without evidence (imagine or believe)

To arrive at a conclusion through careful logical thought (deliberate)

To think deeply on (ponder)

The act of placing things close together in a work of art that are contrasting.

Not seeming real, can't believe

To leave someone or something abruptly with no intention of returning (desert)