'Undeviating' definitions:

Definition of 'undeviating'

(from WordNet)
adjective
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" [syn: undeviating, unswerving]
adjective
Used of values and principles; not subject to change; steady; "undeviating loyalty"

Definition of 'Undeviating'

From: GCIDE

Synonyms of 'undeviating'

From: Moby Thesaurus