Insistent solicitation and entreaty:
— His importunity left me no alternative but to agree.

synonyms: urgency, urging.

Roget 765: request, requisition; claim etc. (demand) 741; petition, suit, prayer; begging letter, round robin.    motion, overture, application, canvass, address, appeal, apostrophe; imprecation; rogation; proposal, proposition.    orison etc. (worship) 990; incantation etc. (spell) 993.    mendicancy; asking, begging etc. v.; postulation, solicitation, invitation, entreaty, importunity, supplication, instance, impetration^†, imploration^†, obsecration^†, obtestation^†, invocation, interpellation.    ... show more

Polish: nachalność, nachalstwo, namolność, natarczywość, natręctwo