at the least
• (used after amounts) not less than; at the minimum.
• "stay ten days at the least"
• taking the most pessimistic or unfavourable view.
• "a programme which is, at the very least, excellent PR for the hospital"
at least
• not less than; at the minimum.
• "clean the windows at least once a week"
Similar:
at the minimum,
no less than,
not less than,
as a conservative estimate,
at rock-bottom,
more than,
• if nothing else (used to add a positive comment about a generally negative situation).
• "the options aren't complete, but at least they're a start"
• anyway (used to modify something just stated).
• "they seldom complained—officially at least"