そんな => Like that N4
Level
なんてことない => Nothing serious, significant N3
Evaluate
なんか/なんて/など => give examples N3
なんと => How N3
Doubt
なんということもない => Nothing worth mentioning N3
Emphasize
なんとも => Unimaginable N3
Evaluate
...なりなんなり... => any,anything,whatever N1
Vague
なんら~ ない => nothing, absolutely not … N2
Emphasize the negative meaning
そのはんめん(では) => on the other hand~ N3
Compare
なんだか => somehow, somewhat N3
Vague
やなんか => Something like... N3
Vague
どんな => Whatever, anything (also) N5
Things do not match the prediction