Combine the vinegar, honey, pepper flakes, peppercorns, coriander, mustard seeds, fennel seeds, cumin and salt in a medium non-reactive saucepan over high heat and bring to a boil.
Let boil for 2 minutes; remove from the heat and let sit until cooled to room temperature.
Add the dill and cilantro.
Place the cucumber in a medium bowl and pour the cooled vinegar mixture over them. Refrigerate, covered for 24 hours or up to 4 days.