- unstable⇄adv. unstably.
- unstable⇄noun unstableness.
- unstable⇄unstable, adjective.
1. not stable; not firmly fixed:
a. easily moved or shaken; likely to break down.
Ex. an unstable mind.
(SYN) unsettled.
b. easily overthrown.
Ex. an unstable government.
(SYN) unsettled.