Adverb
In a manner or to a degree that can not be repressed.
Source: Webster's dictionaryThe blues is an art of ambiguity, an assertion of the irrepressibly human over all circumstances, whether created by others or by one's own human failing. Ralph Ellison
His Grace was at her side, and lifted her down from the chair. "My enfant," he said, "duchesses do not dance on chairs, nor do they call their brothers 'imbécile'." Léonie's twinkled irrepressibly. "I do," she said firmly. Georgette Heyer
Brilliantly, ecstatically, irrepressibly. This is the way to burn. Tom Robbins
This is the way to burn," the fuse seemed to be saying to the more docile, slow-witted candlewick. "Brilliantly, ecstatically, irrepressibly. This is the way to burn. Tom Robbins