First of all, dumbass, it's not hyphenated.
lowbrow
-noun 1. a person who is uninterested, uninvolved, or uneducated in intellectual activities or pursuits.
-adjective 2. being a lowbrow: that lowbrow idiot.
3. of, pertaining to, or proper to a lowbrow: lowbrow entertainment.
[Origin: 1905-10, Americanism; low1 + brow]
-Related forms
lowbrowism, noun
Source: Random House Unabridged Dictionary, © Random House, Inc. 2006
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Main Entry: barbarian
Part of Speech: adjective
Definition: savage
Synonyms: barbaric, barbarous, boorish, brutal, coarse, crude, cruel, inhuman, lowbrow, merciless, philistine, primitive, rough, rude, uncivil, uncivilized, uncouth, uncultivated, unlcultured, unsophisticated, untamed, vicious, vulgar, wild
Antonyms: civilized, cultured, refined
Source: Roget's New Millennium™ Thesaurus, First Edition (v 1.3.1)
Copyright © 2007 by Lexico Publishing Group, LLC. All rights reserved.
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Secondly, since when is someone who expresses an opinion, states an objection, or debates a point considered a "lowbrow"?
I believe, per the above definitions, the answer is never.
In the future, I suggest you learn what a word means before you start tossing it around like confetti.
-noun 1. a person who is uninterested, uninvolved, or uneducated in intellectual activities or pursuits.
-adjective 2. being a lowbrow: that lowbrow idiot.
3. of, pertaining to, or proper to a lowbrow: lowbrow entertainment.
[Origin: 1905-10, Americanism; low1 + brow]
-Related forms
lowbrowism, noun
Source: Random House Unabridged Dictionary, © Random House, Inc. 2006
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main Entry: barbarian
Part of Speech: adjective
Definition: savage
Synonyms: barbaric, barbarous, boorish, brutal, coarse, crude, cruel, inhuman, lowbrow, merciless, philistine, primitive, rough, rude, uncivil, uncivilized, uncouth, uncultivated, unlcultured, unsophisticated, untamed, vicious, vulgar, wild
Antonyms: civilized, cultured, refined
Source: Roget's New Millennium™ Thesaurus, First Edition (v 1.3.1)
Copyright © 2007 by Lexico Publishing Group, LLC. All rights reserved.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Secondly, since when is someone who expresses an opinion, states an objection, or debates a point considered a "lowbrow"?
I believe, per the above definitions, the answer is never.
In the future, I suggest you learn what a word means before you start tossing it around like confetti.