Somewhat inclined to fleering; having qualities of mockery or scorn; somewhat contemptuous or sneering.
From 'fleer' (verb) plus the suffix '-ish,' which creates adjectives meaning 'somewhat' or 'having qualities of'—a productive suffix in English for making gentler or vaguer versions of adjectives.
The '-ish' suffix is perfect for attitudes—'fleerish' means not quite a full fleer, more like that person has a tendency toward contempt, making it useful for describing ambiguous or mixed expressions.
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