General:
* Abstract: Existing in thought or as an idea but not having a physical or concrete existence.
* Complex: Consisting of many parts or elements.
* Deep: Characterized by a thorough or profound understanding.
* Distracted: Characterized by a lack of concentration.
* Fleeting: Lasting for a very short time.
* Focused: Concentrated on a particular thing.
* Lucid: Clear, easy to understand.
* Obscure: Difficult to understand or perceive.
* Powerful: Having a strong effect on the mind or feelings.
* Rambling: Wandering from one subject to another without a clear plan.
* Sharp: Quick and clear in thought.
* Simple: Easy to understand.
* Subtle: Not obvious or easily noticed.
* Superficial: Concerned only with the obvious or apparent.
Positive:
* Brilliant: Exceptionally clever or talented.
* Creative: Having the ability to produce original ideas.
* Inspiring: Causing feelings of enthusiasm and excitement.
* Insightful: Having or showing an accurate and deep understanding.
* Original: New and unique.
* Positive: Expressing or characterized by optimism or hope.
* Profound: Having or showing great knowledge or insight.
Negative:
* Disturbing: Causing anxiety or unease.
* Dreadful: Extremely unpleasant.
* Frightening: Causing fear or alarm.
* Negative: Expressing or characterized by pessimism or hopelessness.
* Pessimistic: Expecting the worst or having a negative outlook.
* Troubling: Causing worry or concern.
Other:
* Conscious: Aware of and responding to one's surroundings.
* Subconscious: Relating to the part of the mind that is not fully conscious.
* Unconscious: Not conscious or aware of one's surroundings.
* Ephemeral: Lasting for a very short time.
* Unbidden: Arriving or happening without being asked or expected.
The best adjective to use will depend on the specific context of your writing.