noun, plural so·ber·sides. (used with a singular verb) Slang.
a humorless or habitually serious person.
Origin of sobersides
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for sobersides
Historical Examples of sobersides
Its womenfolks andand an interest in one that makes a man a sobersides.The Heart of Canyon Pass
Thomas K. Holmes
(functioning as singular) a solemn and sedate person
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012