vehemently

Example:He earnestly sought to understand the other's point of view.

Definition:With serious and conscientious purpose; sincerely in a serious manner, especially involving strong emotions.

Example:The speaker's voice was forcing them to pay attention.

Definition:With a lot of energy and power; in a manner that is demanding or compulsory.

Example:They were intensely focused on solving the problem.

Definition:To a great and noticeable degree; in a very marked or extreme manner.