Resembling flint in hardness, appearance, or character; extremely hard or unyielding.
Compound of 'flint' and 'like' (from Old English 'gelice', meaning similar or similar to). Compounds with '-like' are productive in English.
The '-like' suffix is English's way of saying 'similar to' without needing a simile—we can instantly understand 'flintlike,' 'diamond-like,' or 'glass-like' without any explanation needed.
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