insisting
adj. B2 Upper Intermediate US //ˌɪnˈsɪstɪŋ// UK //ɪnsˈɪstɪŋ// in·sist·ing
adj. describing someone who keeps saying they want or need something, even when people say no. You use this when someone will not change their mind.
adj. characterized by persistent and firm demands or requests, often despite opposition or refusal. Typically used predicatively after linking verbs such as 'be' or 'remain'.
She is insisting on paying for dinner.
The manager is insisting that all staff submit their reports by Friday.
Despite the board's reservations, the CEO remained insisting that the merger proceed without further delay.
Usage
Often followed by 'on' or 'that'.