vt to compute or rate too high.
2. overcast ·vt to cast or cover over; hence, to cloud; to darken.
3. overcast ·vt to take long, loose stitches over (the raw edges of a seam) to prevent raveling.
4. overcast ·add. ·vt to fasten, as single sheets, by overcast stitching or by folding one edge over another.