unpronounceable

adj.

impossible or difficult to pronounce correctly

very difficult to pronounce correctly

"an unpronounceable foreign word"

同义词：unutterable

Left-lateralized N170 response to unpronounceable pseudo but not false Chinese characters-the key role of orthography
Left-lateralized N170 response to unpronounceable pseudo but not false Chinese characters - the key role of orthography
Hemispheric asymmetry for processing unpronounceable and pronounceable letter trigrams.
Left hemisphere superiority for pronounceable nonwords, but not for unpronounceable letter strings
Casselberveetovallarga and other unpronounceable places: The CrossTowns Corpus
I'm Talking to You-Mab-How to Pronounce the New, Unpronounceable Pharmaceuticals.
The Paper with the Unpronounceable Title
Anti-NMDA receptor encephalitis and Facklamia languida septicaemia: initially unpronounceable but eventually treatable
And still a virus: Chikungunya. Unpronounceable and not harmless
MR Unpronounceable and the Sect of the Bleeding Eye