Vain

1.

(conceited, having no real value, worthless, proud of oneself, self-satisfied, idle, without force. -in vain without success, to no purpose) ដែលឥតប្រយោជន៍, ដែលឥតបានការ, ដែលឡឺត, ដែលឥតខ្លឹមសារ, ដែលកោង, ដែលក្រអើតក្រអោង, ដែលខែង, ឫកពាខ្ពស់ vain attempt ដែលឥតបានការ, ដែលឥតប្រយោជន៍, ដែលអសារ, vain woman ដែលគិតថាខ្លួនលើសគេ, in vain ដែលឥតអំពើ, ប្រយោជន៍
Example: A vain attempt.

2.

(បច្ចេកទេស) ដែលគិតថាខ្លួនគ្រាន់បើ (ឬសារៈសំខាន់) ជាងគេ, ឥតប្រយោជន៍

• in the vain
  - ឥតប្រយោជន៍, គ្មានបានទទួលផល

1.

Vanity; emptiness; -- now used only in the phrase in vain.

1.

Having no real substance, value, or importance; empty; void; worthless; unsatisfying.

2.

Destitute of forge or efficacy; effecting no purpose; fruitless; ineffectual; as, vain toil; a vain attempt.

3.

Proud of petty things, or of trifling attainments; having a high opinion of one's own accomplishments with slight reason; conceited; puffed up; inflated.

1.

abortive, bootless, empty, fruitless, futile, idle, ineffectual, pointless, unavailing, useless, valueless, vapid, worthless

2.

conceited, proud, vainglorious

1.

effective, potent, profitable, meek, modest

1.

Showy, ostentatious