For positive, energetic feelings:
* Thrilling: Stronger than "exciting," suggesting adrenaline and danger.
* Electrifying: Suggests a sudden burst of energy and excitement.
* Stimulating: Emphasizes mental or intellectual excitement.
* Invigorating: Suggests a feeling of energy and freshness.
* Enthralling: Captivating, holding your attention completely.
* Rousing: Suggests a feeling of excitement and enthusiasm.
* Buzzing: Informal, suggesting a lively, energetic atmosphere.
* Lively: Describes something full of energy and activity.
* Dynamic: Suggests something full of energy and movement.
* Spirited: Describes something full of enthusiasm and energy.
For more subdued, positive feelings:
* Intriguing: Suggests a sense of curiosity and interest.
* Promising: Suggests anticipation of something good to come.
* Hopeful: Suggests a positive outlook and anticipation.
* Pleasing: Suggests a feeling of satisfaction and enjoyment.
* Delightful: Suggests a feeling of happiness and pleasure.
For neutral or negative feelings:
* Uncommon: Suggests something different or unusual.
* Unfamiliar: Suggests something new or unknown.
* Intriguing: Suggests a feeling of curiosity, but not necessarily positive.
* Unusual: Suggests something different from the norm.
* Unexpected: Suggests something surprising, but not necessarily positive.
Formal alternatives:
* Stimulating: For intellectual excitement.
* Engaging: For something that holds your interest.
* Captivating: For something that enthralls you.
The best word to use will depend on the specific situation and the feeling you want to convey.