1. in a way that is suitable, appropriate, or proper for a particular situation or purpose
2. in a way that fits well or is well-adjusted in size, shape, or form

Examples

• The speaker fitly concluded the presentation with a summary of the main points.
• The new policy was fitly designed to address the concerns raised by employees.
• She fitly responded to the criticism with grace and professionalism.
• The pieces fit fitly together, forming a complete puzzle.
• His remarks were fitly timed to coincide with the announcement.
• The dress fit fitly at the shoulders and waist.