不客气 [ bù kè qi ]: you're welcome; don't mention it; impolite; rude; blunt

不但 [ bù dàn ]: not only (... but also...)

不仅 [ bù jǐn ]: not only (this one); not just (...) but also

不过 [ bù guò ]: only; merely; no more than; but; however; anyway (to get back to a previous topic); cannot be more (after adjectival)

不管 [ bù guǎn ]: not to be concerned; regardless of; no matter

More: 不* | *不 | *不*