rentrant

/ʁɑ̃.tʁɑ̃/rentrer
1.
adjective

inward-facing

recessed

concave

La façade comporte un angle rentrant qui crée une petite alcôve.

The façade has an inward-facing angle that creates a small alcove.

Synonyms:creux, concave
2.
verbPart1stPres

returning

coming back (home)

En rentrant du travail, j'ai croisé un ancien camarade de classe.

Coming back from work, I bumped into a former classmate.

Synonyms:revenant, retournant