| a. | 1. | Having or involving a pressure greatly exceeding that of the atmosphere; - said of steam, air, water, etc., and of steam, air, or hydraulic engines, water wheels, etc. | |||
| 2. | Fig.: Urgent; intense; | ||||
| 3. | Using intense psychological pressure or other incentives to convince others to do things; aggressively persistent;
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| Adj. | 1. | high-pressure - aggressively and persistently persuasive; "a hard-hitting advertising campaign"; "a high-pressure salesman" Synonyms: hard-hitting |