indefinable• And yet about him there hung the indefinable air of ugliness.• In coming here, he was actually following psychicinstinct, an indefinable but insinuatingimpulse to visit the court of Voronov-Vaux.• Because of its name and that paleblue the school enjoyed a peculiarindefinabledistinction.• More and more the soldiers felt a certainindefinablemalaise during their brief periods of leave at home.• Moore's view is that it is a simple and therefore indefinableproperty.• She felt a suddenindefinablesadness.• You learn to recognise them through experience; it's often an indefinable something that's lacking.• That has something to do with the indefinable thing called talent.• The air in here was personalized and unhealthy in an indefinable way.