  Bulk TiSe$_2$ is an intrinsically layered transition metal dichalcogenide
(TMD) hosting both superconducting and charge density wave (CDW) ordering.
Motivated by the recent progress in preparing two-dimensional TMDs, we study
these frustrated orderings in {\it single} trilayer of TiSe$_2$ within a
renormalization group approach. We establish that a novel state with
time-reversal symmetry broken chiral superconductivity can emerge from the
strong competition between CDW formation and superconductivity. Its stability
depends on the precise strength and screening of the electron-electron
interactions in two-dimensional TiSe$_2$.
