unstable
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unstable¹
- /ʌnˈsteɪ.bəl/
Rhymes with -eɪbəl
Where it comes from
From Middle English unstable; equivalent to un- (not) + stable.
adjective more unstable · most unstable
- Not stable. unstable foundation
- Having a strong tendency to change. The dawn of the oil age was fairly recent. Although the stuff was used to waterproof boats in the Middle East 6,000 years ago, extracting it in earnest began only in 1859 after an oil strike in Pennsylvania.[…]It was used to make kerosene, the main fuel for artificial lighting after overfishing led
- Fluctuating; not constant. politically unstable
- Fickle.
- Unpredictable. All of the characters in Rocko's Modern Life are anthropomorphic animals of varying species, the vast majority of whom are mentally unstable. Murray said that he matched personalities of his characters to the various animals in the series to form a social caricature.
- Readily decomposable. chemically unstable
- Radioactive, especially with a short half-life.
unstable²
- /ʌnˈsteɪ.bəl/
Rhymes with -eɪbəl
Where it comes from
Etymology tree
Proto-Indo-European *h₂ent-
Proto-Indo-European *-s
Proto-Indo-European *h₂éntsder.
Proto-Germanic *anda-
Proto-West Germanic *anda-
Old English and-
Old English on-
Middle English on-
English un-
English stable
English unstable
From un- (reversive prefix) + stable.
verb unstables · unstabling · unstabled
- To release (an animal) from a stable. When the last tune of music floated from the fleet, he unstabled his quarter horse and headed for the coastal road leading west and north on his circuit.
