temperamental

• Qualifie une personne ou une chose sujette à des changements d'humeur ou de comportement imprévisibles, ou peu fiable dans son fonctionnement.

Describes a person or thing that is prone to unpredictable changes of mood or behavior, or that is unreliable in performance.

1. Relating to temperamentB2formal

   Relating to or caused by a person's natural character or disposition.

   relatif au tempérament

   • Her temperamental nature makes her prone to sudden changes in mood.
   • The artist's temperamental approach to work is influenced by his personality.
   • Temperamental differences between siblings can lead to conflicts.

   Synonymesconstitutionalinborninnateintrinsicnatural

2. Moody or unpredictableB2informal

   Subject to sharply varying moods; easily upset or irritated.

   d'humeur changeante ou imprévisible

   • He is quite temperamental and can become angry without warning.
   • The actress is known for being temperamental on set.
   • A temperamental boss can make the workplace stressful.

   Synonymescapriciouschangeableerraticfickleirritablemercurialmoodytouchyunstablevolatile

   Antonymescalmcomposedequableeven-temperedimperturbablelevel-headedplacidserenestablesteady

3. Unreliable performanceB2informal

   Likely to perform unpredictably or malfunction, especially in machines or systems.

   Capricieux

   • My old car is temperamental and often fails to start in cold weather.
   • The computer is temperamental and crashes frequently.
   • The heating system is temperamental, sometimes working and sometimes not.

   Synonymescapriciouserraticficklefinickyunpredictableunreliableunstablevolatile

   Antonymesdependablereliablestable