The trait of exhibiting no personal embarrassment or concern
English: blandness
blandnessEnglish
blandness, insipidity, insipidness, smoothness, suaveness
Noun
The quality of being bland and gracious or ingratiating in manner
English: suavity, suaveness, blandness, smoothness
Lacking any distinctive or interesting taste property
English: blandness, insipidity, insipidness