弱る

よわる

to weaken, to be troubled, to be emaciated

JLPT N1

Character Breakdown

Meaning and Usage

The verb 弱る (よわる) primarily means "to weaken" or "to become weak." It can refer to physical weakness, such as the body becoming frail with age or illness, as well as mental or emotional weakening, like feeling troubled or stressed.

Common Contexts

  • Physical decline: Often used when talking about aging, illness, or exhaustion.
  • Mental/emotional state: Used to describe someone feeling troubled, stressed, or overwhelmed.

Collocations and Patterns

  • 体が弱る (からだがよわる): the body weakens
  • 精神的に弱る (せいしんてきによわる): to be mentally weakened or troubled
  • 疲れて弱る (つかれてよわる): to become weak from fatigue

Register and Nuance

弱る is a neutral verb used in both formal and informal contexts. It often conveys a natural or gradual decline rather than sudden failure. It can describe both physical and psychological states, so context is important to understand the intended meaning.

Common Mistakes

Learners sometimes confuse 弱る with 弱める (よわめる), which means "to weaken something" (transitive). 弱る is intransitive, describing the subject itself becoming weak or troubled. Remember 弱る is used when the subject experiences weakness, not when someone causes weakness.

Example Sentences

としをとるとからだがよわることがおおい。

As people get older, their bodies often weaken.

かれはもんだいがおおくてせいしんてきによわっている。

He is mentally troubled because of many problems.

あつさでたいりょくがよわってしまった。

My physical strength weakened because of the heat.