— unerringly , adv. — unerringness , n.
/un err"ing, -er"-/ , adj.
1. not erring; not going astray or missing the mark: The captain set an unerring course for home.
2. undeviatingly accurate throughout; not containing any error or flaw: She gave an unerring recital of the day's events.
3. invariably precise or correct: unerring taste.
[ 1615-25; UN- 1 + ERRING ]