IPA: /ʌnˈbræntʃt/
KK: /ʌnˈbræntʃt/
Describing something that does not have any branches or divisions.
The unbranched tree trunk stood tall in the forest.
Unbranched → It is formed from "un-" (meaning not) and "branched" (from the root "branch" which comes from Old English "brænc", meaning a division or offshoot). The word "unbranched" means not having any branches or divisions.
Think of 'not' ('un-') having any 'divisions' ('branch') — that's why unbranched means without branches.