Temperamental: meaning, definitions and examples

Used to describe someone who changes moods quickly and often without reason. Often applied to people or machines that are not reliable.

• The CEO was known to be temperamental, making meetings unpredictable

Describes someone whose mood changes often and seemingly without reason. Usually has a negative connotation.

• He's so moody these days; you never know if he'll be happy or angry

Used to describe situations or people that are likely to change rapidly and unpredictably, often for the worse. It has a strong negative connotation and suggests a risk of explosion or conflict.

• The political situation in the country is highly volatile

Describes people, events, or situations that cannot be anticipated. Often carries a sense of risk or uncertainty.

• The weather in this region is highly unpredictable; always bring an umbrella

Refers to someone who shows their feelings openly. It can be both positive and negative, depending on if they express joy, sadness, anger, etc.

• She gave an emotional speech that left the audience in tears

Used to describe someone or something that is unpredictable and prone to mood swings. Often used for people or animals with varying emotional states.

• The horse is quite temperamental and can be difficult to handle
• The actor is known for his temperamental nature, making it hard to work with him

Often means something or someone is not stable and can change or fall apart easily, whether physically or emotionally. Usually has a negative connotation.

• The old bridge is unstable and unsafe for crossing
• His mental health has been unstable lately, requiring professional attention

Refers to something that can change frequently, often in conditions like weather or decisions. Neutral in tone.

• The weather in this region is highly changeable and hard to predict
• His mood is changeable, sometimes he's happy and other times he's sad

Refers to something that does not stay the same within a given context or standard. Often used for performance, behavior, or opinions. Neutral in tone but may imply unreliability.

• Her attendance has been inconsistent, making it difficult to plan group activities
• The team's performance has been inconsistent this season

Describes unpredictable, inconsistent, often irrational behavior or movements. Has a slightly negative connotation.

• His driving was erratic, swerving between lanes without warning
• The stock market has been quite erratic lately, showing no clear trend