- abstruse
- profound mystery
- the mysteries of the universe
Generated: This meaning refers to something that is difficult to understand or comprehend, often due to its complexity or depth.
This theory is very abstruse; only a few people can understand it.
Generated: This meaning indicates something that is deeply puzzling or enigmatic, often relating to fundamental questions or phenomena.
The origin of life remains a profound mystery.
Generated: This phrase suggests the vast and often unanswerable questions regarding the nature of the universe and existence.