noun
sense of unity; cohesiveness; consistent feel
Used when separate parts feel well unified or consistent, such as in design, style, organization, or a group atmosphere.
この部屋は家具の色がそろっていて、統一感がある。
This room has a cohesive feel because the furniture colors match.
監督が代わってから、チームに統一感が生まれた。
After the coach changed, a sense of unity developed in the team.
一体感 often emphasizes emotional togetherness among people; 統一感 is broader and is also common for visual or stylistic consistency.
A Sino-Japanese compound formed from 統一, 'unification; unity,' plus 感, 'feeling; sense,' literally 'a feeling of unity.'