Synonyms for Smothered (same or very similar meaning)
WordNet sense 1 (overlaid or spread or topped with or enclosed within something; sometimes used as a combining form):
covered
WordNet sense 2 (held in check with difficulty):
stifled, strangled, suppressed
WordNet sense 3 (held back or restrained or prevented):
inhibited
From the ODE community, based on WordNet
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