B1 — Intermediateadjective
instabile
unstable, volatile, unpredictable
Synonyms (≈ similar meaning)
volubilecapricciosoincostanteimprevedibilenevrotico
Antonyms (≠ opposite meaning)
stabileequilibratocostanteaffidabilefermo
Usage note
'Instabile' in personality means emotionally volatile. 'Volubile' means changeable/fickle. 'Capriccioso' implies whimsical unpredictability. 'Incostante' means inconsistent. 'Imprevedibile' means unpredictable. 'Nevrotico' is the psychological term.
Example
"Ha un carattere instabile: cambia umore continuamente."
"He has an unstable character: his mood changes constantly."
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