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broad 
1 ample, beamy  (of a ship) capacious, expansive, extensive, generous, large, roomy, spacious, vast, voluminous, wide, widespread 
2 all-embracing, catholic, comprehensive, encyclopedic, far-reaching, general, global, inclusive, nonspecific, sweeping, undetailed, universal, unlimited, wide, wide-ranging 
3 as in broad daylight  clear, full, obvious, open, plain, straightforward, undisguised 
4 broad-minded, liberal, open, permissive, progressive, tolerant, unbiased 
5 blue, coarse, gross, improper, indecent, indelicate, near the knuckle  (informal) unrefined, vulgar 
 
Antonyms  
 
1 & 2 close, confined, constricted, cramped, limited, meagre, narrow, restricted, tight