クーラー不足で
クーラー不足で暑くてたまらない。
It's unbearably hot due to the lack of air conditioning.
due to a shortage of air conditioning
夏なのにクーラー不足で仕事がはかどらない。
Despite it being summer, work isn't progressing due to the lack of air conditioning.
クーラー不足で寝られなかった。
I couldn't sleep because of the lack of air conditioning.
Used in everyday conversation to describe discomfort caused by insufficient cooling. Often implies the air conditioning system is inadequate for the temperature.
Pro Tip
When to use クーラー vs エアコン
In modern Japanese, クーラー is commonly used to refer to air conditioning units, especially in casual conversation. エアコン is more formal and widely understood. Both are acceptable, but クーラー is more colloquial.
Gold Rule
Avoid literal translations of compound phrases
The phrase クーラー不足で should not be translated word-for-word as 'cooler lack' but as 'due to lack of air conditioning' to convey the intended meaning.
Word Origin
クーラー is a katakanization of the English word 'cooler' (air conditioner). 不足で is a compound of 不足 (busoku, 'lack') and the particle で (de, 'due to'). The phrase emerged in modern Japanese as air conditioning became common in homes and workplaces.
Usage Notes
This phrase is commonly used in summer when air conditioning systems are insufficient for the heat. It can also be used metaphorically in business contexts to describe a lack of resources or support.