The best replacement for synchronous is asynchronous.

The best alternatives to synchronous are rated as following:

★★★★★	asynchronous
★★★★	asynchronous learning
★★★	asynchronous communication
★★★	metachronous
★★	asynchronous replication
★★	induction motor
★	asynchronous messaging
★	induction motors
★	asynchronous motor
★	asynchronous reset
★	induction
★	asynchronous motors
★	asynchronous programming
★	asynchronous ssd
★	asynchronous adsense
★	asynchronous message passing
	asynchronous web services
	asynchronous web service
	asynchronous javascript
	asynchronous java
	non synchronous
	asynchronous socket
	asynchronous io
	asynchronous pacing
	asynchronous dsl
	asynchronous elearning
	asynchronous counters

Your alternative for synchronous is not listed? Suggest!

No companions for synchronous have been suggested so far.

You have in mind a companion for synchronous and it is not yet here? Propose!

Scale is based on the average worldwide traffic of synchronous in all years. Click on graph for more.

synchronous

asynchronous

asynchronous learning