i- [prefix] - used to show that something is almost, but not completely, the thing describedThe school uniform is quasi-military in style.Somehow the idea has got around that the environment isn't a normal political issue, but a quasi-religious crusade.He describes the quasi-mystical experiences induced by drugs.
QUAS
Meaning of QUAS in English
Cambridge English vocab. Кембриджский английский словарь. 2012