Immethodically and Irregularly

(adv.) Without method; confusedly; unsystematically.

adverb

• In an irregular manner.
  • usage: "the patient is breathing irregularly"
• Having an irregular form.
  • usage: "irregularly shaped solids"
• In an irregular manner.
  • usage: "her letters arrived irregularly"
  • synonyms: on an irregular basis
• In an irregular manner.
  • usage: "the stomach mucosa was irregularly blackened"

(adv.) In an irregular manner.