Designed to prevent or resist the effects of hasty or rushed action; not vulnerable to haste.
From 'haste' + 'proof' (resistant to, as in 'waterproof' or 'fireproof'). This compounds two English elements using the '-proof' suffix meaning 'protected against.'
The '-proof' suffix creates wonderfully descriptive compounds—'waterproof,' 'soundproof,' 'foolproof'—and while 'hasteproof' is rare, it perfectly illustrates how English speakers can coin new words by combining existing elements in logical ways.
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