| A | B |
|---|
| ABSTRUSE | ADJ - difficult to understand |
| CALLOUS | ADJ - emotionally hardened; unfeeling |
| CONVOLUTED | ADJ - intricate or complex |
| DISAFFECTED | ADJ - having lost faith or loyalty; discontent |
| ENIGMA | N - a puzzle |
| INSCRUTABLE | ADJ - difficult to fathom or understand; impenetrable |
| RETICENT | ADJ - inclined to keep silent; reserved |
| STAID | ADJ - unemotional; serious |
