General:
* Suggestive: Implying something, often subtly.
* Proposed: Put forward as a possible idea.
* Indicative: Pointing to something.
Positive:
* Helpful: Providing useful advice.
* Insightful: Offering a valuable new perspective.
* Creative: Presenting an original idea.
* Constructive: Aiming to improve something.
* Thoughtful: Showing consideration for others.
Negative:
* Vague: Lacking clarity or specificity.
* Ambiguous: Capable of being understood in multiple ways.
* Unclear: Difficult to understand.
* Unhelpful: Not providing useful advice.
Other:
* Informal: Not official or formal.
* Casual: Relaxed and informal.
* Personal: Coming from a single individual.
The best adjective to use will depend on the context of your sentence and the specific meaning you wish to convey.