junk

coeval adj.

coevally adv.

coexistent adj.

coincidental adj.

coinstantaneous adj.

concomitant adj.

concurrent adj.

concurrently adv.

contemporaneous adj.

contemporaneously adv.

at once gleichzeitig

at the same time

simultaneous adj.

simultaneously adv.

apace adv. [poet]

brisk adj.

briskly adv.

expeditious adj.

expeditiously adv.

mobile adj.

nippy adj. (Brit.) [sl.]

prompt adj.

quick adj.

quickly adv.

rapid adj.

rapidly adv.

slippy adj.

spanking adj.

speedily adv.

speedy adj.

swift adj.

swiftly adv.

adj. Possible to do. adj. Possible to do.