You were either a disciplined and undeviating Marxist or no socialist at all.
From the en.wikipedia.org
This man has the sixth sense of dance, and he uses it with undeviating intelligence.
From the time.com
Rubio has to date shown himself an undeviating follower of that program.
From the us.cnn.com
He enforces the laws with undeviating severity while the Duke masquerades as a lowly friar.
From the time.com
The Horrors have an undeviating faith in the creative sparks that fly when the five of them get together.
From the telegraph.co.uk
Company tells all of this and tells it with an undeviating honesty that some playgoers will find acrid.
From the time.com
Deal with them with undeviating justice,so that none among them may either suffer want,or be pampered with luxuries.
From the blog.beliefnet.com
I admired his authority and his undeviating focus.
From the guardian.co.uk
William O. Douglas was the court's most undeviating liberal voice right up to his sudden retirement last week.
From the time.com
More examples
Going directly ahead from one point to another without veering or turning aside; "some people see evolution as an undeviating upward march from simple organisms to the very complex"; "a straight and narrow tree-lined road unswerving across the lowlands"
Used of values and principles; not subject to change; steady; "undeviating loyalty"
That does not deviate, veer or turn aside; unswerving; that does not change; steady