[W]hen the enamel is thick and a little underfired it will be lighter in color and have a pitted surface. Going further, extremely thick areas that are well underfired will be blistered, cracked, or bubbly.
Source: wiktionary
Underfired
//ˈʌndəˌfaɪəd//
Synonyms for "underfired"
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Sample sentences
6 total sentences available.
In terms of its body composition, Ru ware is essentially a slightly underfired (1200°–1250°C) stoneware with a high-alumina, low-iron clay of typical north Chinese composition.
Source: wiktionary
An underfired or short-fired piece is likely to break if you attempt to change its shape because it is built of many small particles of silver, joined together at the edges. A properly made, fully sintered and fully annealed metal clay piece should be able to stand up to any traditional metalsmithing technique.
Source: wiktionary
Some old, underfired clay pantiles might be damaged by button mosses rooting in cracks and fissures. But most post-war tiles are hard enough to withstand a bit of moss growth.
Source: wiktionary
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.