Answer:
My argument is slightly, but not insignificantly, different.”
...
What is the opposite of considerably?
slightly little
insignificantly somewhat
barely hardly
moderately scarcely
marginally only just
Months don't have 80 days (only four months of 30 days make eighty days).
Months have 30 or 31 days. February is the only month with 28 days, except for leap years in which February has 29 days.
January, March, May, July, August, October and December have 31 days. Whereas April, June, September and November have 30 days.