Gainsay, Gainsayer, Gainsaying - Vine's Expository Dictionary of New Testament Words
Gainsay, Gainsayer, Gainsaying[ A-1,Verb,G483, antilego ]
to contradict, oppose," lit., "say against," is translated "gainsaying" in Romans 10:21; Titus 2:9, RV (AV, "answering again"), of servants in regard to masters; in Titus 1:9 "gainsayers." Moulton and Milligan (Vocab.) illustrate from the papyri "the strong sense of antilego in Romans 10:21, 'contradict,' 'oppose'." See ANSWER, CONTRADICT.
[ A-2,Verb,G471, anteipon ]
which serves as an aorist tense of No. 1, is rendered "gainsay" in Luke 21:15; "say against" in Acts 4:14. See SAY.
[ B-1,Noun,G485, antilogia ]
akin to A, No. 1, is rendered "gainsaying," in Hebrews 12:3, RV, and Jude 1:11. Opposition in act seems to be implied in these two places; though this sense has been questioned by some, it is confirmed by instances from the papyri (Moulton and Milligan, Vocab.). See CONTRADICTION, DISPUTE, STRIFE.
[ C-1,Adjective,G368, anantirrhetos ]
lit., "not to be spoken against" (a, negative, n, euphonic, anti, "against," rhetos, "spoken"), is rendered "cannot be gainsaid" in Acts 19:36, RV.
[ D-1,Adverb,G369, anantirrhetos ]
corresponding to C, is translated "without gainsaying" in Acts 10:29; it might be rendered "unquestioningly."