'Tedium' definitions:

Definition of 'tedium'

From: WordNet
noun
The feeling of being bored by something tedious [syn: boredom, ennui, tedium]
noun
Dullness owing to length or slowness [syn: tediousness, tedium, tiresomeness]

Definition of 'Tedium'

From: GCIDE
  • Tedium \Te"di*um\, n. [L. taedium, fr. taedet it disgusts, it wearies one.] Irksomeness; wearisomeness; tediousness. [Written also taedium.] --Cowper. [1913 Webster]
  • To relieve the tedium, he kept plying them with all manner of bams. --Prof. Wilson. [1913 Webster]
  • The tedium of his office reminded him more strongly of the willing scholar, and his thoughts were rambling. --Dickens. [1913 Webster]