Tiresome by reason of length, slowness, or dullness; boring. See Synonyms at boring.(adjective)
Obsolete Moving or progressing very slowly.(adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "tedious" in a sentence
"CARROLL: Truckers say a ban would slow deliveries and make what they call a tedious job worse."
"In school this is where teachers dragged out a boring five-paragraph essay by adding in tedious research, and mind-numbing outlines, before letting you just hammer out the rough draft like you wanted to do in the first place."
"Also becoming tedious is the sight of the brothers pinned against walls and demons coming out of peoples mouths."