volatile

adjective
1
changing easily from one mood to another
بی‌ثبات, دمدمی, دمدمی‌مزاج
2
likely to change suddenly; easily becoming dangerous
فرّار, بی‌ثبات, ناپایدار, متغیر, با احتمال تغییر زیاد
This is a highly volatile situation from which riots might develop.
Exporting the product was difficult due to a volatile exchange rate.
a potentially volatile situation
synonym unstable
3
that changes easily into a gas
فرار, تبخیرپذیر
Petrol is a volatile substance.