Synonyms for Thoroughgoing:

adj.

complete (adjective)
absolute, out-and-out, unqualified.
orderly (adjective)
systematic.

n.

full dress, good, resounding, all-out, intensive, sound, big, Thoroughpaced, careful, in depth.

Other synonyms:

crashing, Thoroughpaced, absolute, unrelieved. all-out, out-and-out, outright. full dress, intensive, unlimited, flat out, unbounded. unequivocal, blooming. unqualified, damned. unreserved. dead. flat. plain. thorough
downright.

Usage examples for thoroughgoing

  1. It has been too much the habit to picture Burr as a thoroughgoing scoundrel who murdered an innocent man and conspired against his country. – American Men of Action by Burton E. Stevenson
  2. The noble staircase remains, a good, thoroughgoing piece of carving of Bacchus and full casks; the house has gone. – Highways and Byways in Surrey by Eric Parker
  3. There was a package of several thousand pages; and upon examining them, he found to his utter consternation that they contained a complete bill of complaint, with all the necessary references and citations, and a preliminary draught of a brief- in short, a complete and thoroughgoing preparation of his case. – The Metropolis by Upton Sinclair