Erratically and Regularly

adverb

• In an erratic unpredictable manner.
  • usage: "economic changes are proceeding erratically"
  • synonyms: unpredictably

adverb

• In a regular manner.
  • usage: "letters arrived regularly from his children"
  • synonyms: on a regular basis
• Having a regular form.
  • usage: "regularly shaped objects"
• In a regular way without variation.
  • usage: "try to breathe evenly"

(adv.) In a regular manner; in uniform order; methodically; in due order or time.