The problem of classifying all the avoidable binary patterns in words has been completely solved (see Chapter 3 of M. Lothaire, Algebraic Combinatorics on Words, Cambridge University Press, 2002). Partial words represent sequences that may have some undefined positions called holes. In this paper, we show that, if we do not substitute any variable of the pattern by a trivial partial word consisting of only one hole, the avoidability index of the pattern remains the same as in the full word case.