かたわら

かたわら (傍ら) is a formal expression meaning "while also doing," "besides," or "in addition to." It indicates that someone engages in two activities simultaneously or in parallel, typically over a sustained period. Unlike casual expressions like 〜～ながら, which can describe momentary multitasking, かたわら implies that both activities are significant, ongoing pursuits – often related to one's career, lifestyle, or long-term commitments.

Structure

かたわら attaches to verbs and nouns as follows:

• Verb[dictionary form] + かたわら
• Noun + の + かたわら

Nuance

The key nuance of かたわら is that both activities are treated as substantial and ongoing. The first activity is typically the person's primary occupation or role, and the second is an additional pursuit carried out alongside it. This makes it unsuitable for describing trivial or momentary actions like eating while watching TV.

Because of its formal, literary tone, かたわら is commonly found in written Japanese – biographical descriptions, newspaper articles, and formal introductions – rather than in casual conversation.

Comparison with related expressions

• 〜～ながら: Can describe simultaneous actions of any scale, including momentary ones (e.g., 歩きながら話す). かたわら is restricted to sustained, significant activities.
• 〜～つつ: Similar formality to かたわら and can also describe ongoing activities, but ～つつ can additionally express conflicting feelings (e.g., 悪いと思いつつ), which かたわら cannot.
• いっぽう一方で (いっぽうで): Also means "on the other hand" or "while also," but emphasizes contrast more than parallel pursuit.