adjective

  1. painful, difficult, tough, hard.
  2. distressing, (psychologically) difficult, stressful, awkward (e.g. position).
  3. straitened (circumstances), tight (financial situation), needy, struggling.
  4. strained (interpretation, explanation, etc.), lame (e.g. excuse), forced (e.g. smile), far-fetched.

suffix, adjective

After -masu stem of verb; often ぐるしい.
  1. hard to do, unpleasant.

Variations

Pronunciation Kanji Kana Is Common
 
 
苦しい くるしい

Contained Kanji Breakdown

suffering, trial, worry
ク くる.しい にが.い (3rd, N3)
grass, grass radical (no. 140)
old
コ ふる.い ふゆ (2nd, N4)
ten
ジュウ ジッ ジュッ (1st, N5)
mouth
くち コウ ク (1st, N4)