1. superlative form of frequent; occurring most often or at the shortest intervals
Usage: archaic or literary; modern English typically uses 'most frequent' instead

Examples

• The frequentest visitors to the library were students preparing for exams.
• In that era, the frequentest form of transportation was the horse-drawn carriage.
• Among all the complaints received, the frequentest concern was about service delays.
• The frequentest occurrence in the data set was the number seven.
• She noted that the frequentest time for calls was during lunch hours.