- Regardlessly is defined as something done carelessly or without consideration.
If you are told you cannot do something and you go and down it anyway, this is an example of when you are going to do it regardlessly.
Variant of regardless
without regard; heedless; unmindful; careless
Informal without regard for, or in spite of, objections, difficulties, etc.; anyway
in spite of; notwithstanding: regardless of the cost