少なくとも => at least ~ N2
[少「すこ」]しも~ない => Not (even a little) A N3
Not only, Not even
少しも~ない/ちっとも~ない => (not) at all; (not) in the least ~. N3
もう少しで => almost; nearly, close to ~ N2
がないでもない => is not entirely impossible N2
Explain
いちがいに…ない => Impossible... in general N2
Description
て仕方がない/てしょうがない => can't help but; very; extremely ~ N2
…どうりがない => No reason... N2
Emphasize negative meaning
… とはいいながら => although, even though... N2
Invariant
じゃないが => It's not that... but... N4
How to say the beginning
いまさらながら => Still ... now N3
Time
…以外(いがい)に…ない => with the exception of; excepting ~ N4
Limit