| 不 |
bù kě sī yì | (idiom) inconceivable; unimaginable; unfathomable |
| 不 |
bù | no; not so / (bound form) not; un- |
| 不 |
bù kě | cannot; should not; must not |
| 可 |
kě | (prefix) can; may; able to; -able / to approve; to permit / to suit / (particle used for emphasis) certainly; very / but; however |
| 可 |
kè | used in 可汗 |
| 思 |
sī | to think / to consider |
| 思 |
sī yì | to imagine; to comprehend (usu. used in the negative, as in 不可思议 "inconceivable") |
| 议 |
yì | to comment on / to discuss / to suggest |