noun
conjecture; guess; speculation
A somewhat formal or literary term for an opinion based on guesswork rather than solid evidence. Often used in contexts where one admits uncertainty.
それは単なる臆見に過ぎない。
That is nothing more than conjecture.
彼の説は臆見の域を出ていない。
His theory does not go beyond the realm of speculation.
Compound of 臆 (speculation, conjecture) and 見 (view, opinion). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning 'conjectural opinion'.