undivided
adj. B2 Upper Intermediate US //ˌəndəˈvaɪdɪd// UK //ʌndɪvˈaɪdɪd// un·di·vid·ed
adj. complete and not shared with anything else. You use this to describe attention or support that is given entirely to one person or task.
adj. not shared, split, or distributed among others; complete and whole. Often used to describe abstract qualities like attention, loyalty, or support.
You have my undivided attention.
The manager promised her undivided support for the new project during the board meeting.
To solve such a complex mathematical proof, the researcher required hours of undivided concentration, free from the typical interruptions of the busy office.
From un- + divided.
Usage
Typically used attributively before a noun like 'attention', 'loyalty', or 'support'.