astableWiktionary 原文构词拆分a-前缀(no longer productive) Forming verbs with the sense away, up, on, out. · (no longer productive) Forming verbs with the sense of intensified action.+stable词根/词干词源说明From a- + stable. Piecewise doublet of unstable and instable.释义（英文）形容词 AdjectiveNot stable.(electronics) Having multiple states, none of which is stable.词族相关词（4）bistablemonostablemultivibratorunstable