An instructor given to extremely rigorous training.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "drillmaster" in a sentence
"-- one you can trust, 'he said, and fondled her hastily, much as a gentle kind of drillmaster straightens a fair pupil's shoulders."
"And she has been trying to silence her inner drillmaster."
"He went to see Bronzini, his old chess mentor, a sweet-natured man and not-so-willing drillmaster."