1. superlative form of abstract; most difficult to understand or most removed from concrete reality
Usage: superlative degree of the adjective 'abstract'

Examples

• Philosophy deals with the abstractest ideas about existence and meaning.
• The abstractest form of mathematics requires years of study to master.
• Her writing style is the abstractest in the class, making it hard for readers to follow.
• The abstractest concepts in physics challenge even experienced scientists.
• Of all the theories presented, his was the abstractest and least grounded in evidence.
• The abstractest art movements rejected realistic representation entirely.