| Opaque |
| Uh ... right |
| Very confusing |
| Unintelligible |
| Poorly explained |
| Hazy, facetiously |
| Hard to understand |
| Hardly enlightening |
| Now I get it ... not! |
| Impossible to understand |
| Needing more explanation |
| Completely unintelligible |
| Like an unhelpful explanation |