1. most enthusiastic, warm, or sincere
Usage: superlative form of hearty
2. most vigorous or robust in health
Usage: superlative form of hearty
3. most abundant or substantial
Usage: superlative form of hearty; often used with meals or food

Examples

• She gave him her heartiest congratulations on his promotion.
• The heartiest applause came from the front row.
• Even the heartiest hikers were tired after the long trek.
• He offered his heartiest welcome to the new neighbors.
• The heartiest breakfast on the menu included eggs, bacon, and pancakes.
• Her heartiest laugh could be heard across the room.
• The heartiest members of the team volunteered for extra practice.