different between irresponsible vs unstable

English

Etymology

From ir- +? responsible.

Pronunciation

• (UK) IPA^(key): /??r??sp?ns?bl/
• (US) IPA^(key): /?r??sp?ns?b?l/

Adjective

irresponsible (comparative more irresponsible, superlative most irresponsible)

1. (now rare) Not responsible; exempt from legal responsibility, not to be held accountable.
   • 1790, Edmund Burke, Reflections on the Revolution in France, Oxford 2009, p. 28:

     They left the crown what, in the eye and estimation of law, it had ever been, perfectly irresponsible.

2. Lacking a sense of responsibility; performed or acting as though without responsibility; negligent.

Translations

Noun

irresponsible (plural irresponsibles)

1. Someone who is not responsible.

References

• irresponsible in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• irresponsible in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.

See also

• unresponsive

English

Etymology

un- +? stable

Pronunciation

• IPA^(key): /?n?ste?b??/
• Rhymes: -e?b?l

Adjective

unstable (comparative more unstable, superlative most unstable)

1. Having a strong tendency to change.
2. Fluctuating; not constant.
3. Fickle.
4. Unpredictable.
5. (chemistry) Readily decomposable.
6. (physics) Radioactive, especially with a short half-life.

Synonyms

• (having strong tendency to change): labile
• (fluctuating, not constant): instable (rare); see also Thesaurus:unsteady
• (fickle): arbitrary, capricious
• (not held or fixed securely and likely to fall over): tottering, unsteady, wobbly; see also Thesaurus:rickety

Antonyms

• stable

Related terms

• instability
• unstability (rare)

Translations

Verb

unstable (third-person singular simple present unstables, present participle unstabling, simple past and past participle unstabled)

1. (transitive) To release (an animal) from a stable.

Anagrams

• abluents, ant-blues, bleaunts, blue ants, tunables, unablest