に[相違「そうい」]ない => No doubt N2
Information, Report
に相違ない => without a doubt; certain; sure N2
に[違「ちが」]いない => Without a doubt, A N2
Information, Report
~ といっても間違いない => although I say; although one might say ~ it doesn't matter ... N1
Explain
と違って => different to N2
Compare
いちがいに…ない => Impossible... in general N2
Description
~ないでいる/~ずにいる => ~Still not... N1
Invariant
いかに … とはいえ => What ever... N3
Things do not match the prediction
…以外(いがい)に…ない => with the exception of; excepting ~ N4
Limit
いっこうに ... ない => Still haven't seen... N3
Emphasize negative meaning
ないことには~ない => unless you ~ N2
をいいことに => to take advantage of ~ N1
Criticize