  We compute $\frac{1}{2}$-derivations on the deformative Schr\"{o}dinger-Witt
algebra, on not-finitely graded Witt algebras $W_n(G)$, and on not-finitely
graded Heisenberg-Witt algebra $HW_n(G)$. We classify all transposed Poisson
structures on such algebras.
