1. without delay synonym at once
2. (usually with prepositions) next to or very close to a particular place or time
3. (usually with past participles) closely and directly

eventually later sometime someday subsequently yet at some point at some stage in time sooner or later after a bit after some time at some point in the future in due time in future one day some day after a while at a future date in due course never at no time not at any time not ever on no occasion indirectly independently autonomously unrelatedly second-hand at second hand in a roundabout way away far off apart afar isolated elsewhere separated at a distance far afield far away far off out of the way afterward later on at a later time at another time down the line down the road in a while in the future after afterwards slowly anon next soon after late negligently slow belatedly tardily behind schedule behind time at the tail end at the last minute at your leisure delinquently dilatorily behindhand unpunctually after hours after office hours past the usual closing time past the usual stopping time gradually progressively regularly increasingly steadily unhurriedly gently moderately piecemeal constantly uniformly gradatim systematically successively methodically serially deliberately consistently at your own pace at your convenience without haste without hurry at one's own speed leisurely taking one's time inexactly imprecisely approximately roughly inaccurately until 'til till pending through to up till up to up until up to the time up to the time that until such time as as late as before earlier than when ahead of when sooner than when in advance of when