IPA: /ʌnˈkæpʃənd/
KK: /ʌnˈkæpʃənd/
Describing something that does not have a title or explanation written on it.
The photograph was left uncaptioned, leaving viewers to interpret its meaning themselves.
Uncaptioned → It is formed from "un-" (meaning not) and "caption" (from Latin "capitio", meaning a heading or title). The word "uncaptioned" means not having a caption or title.
Think of 'not' ('un-') having a 'title' or 'heading' ('caption') — that's why uncaptured means something that lacks a title.