whimsically

Example:Despite the severity of the situation, he still tried to remain serious during the meeting.

Definition:In a grave and earnest manner; without joking or playfulness.

Example:The doctor spoke gravely to the patient, discussing the seriousness of her condition.

Definition:In a serious and grave manner, often without any humor.

Example:The ceremony was conducted solemnly, with the solemnity of the occasion being respected by all present.

Definition:In a formal and serious manner, often solemn occasions require a solemn demeanor.