Noah Webster's Dictionary (n.) One who wavers; one who is unsettled in doctrine, faith, opinion, or the like.

Multi-Version Concordance Waverer (1 Occurrence) 2 Corinthians 1:19 For Jesus Christ the Son of God--He who was proclaimed among you by us, that is by Silas and Timothy and myself--did not show Himself a waverer between "Yes" and "No." But it was and always is "Yes" with Him. (WEY)