tediousness

As a noun tediousness

is the quality of being tedious; wearisomeness; prolixity; tiresomeness; slowness; tedium.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between tediousness and monotone

is that tediousness is the quality of being tedious; wearisomeness; prolixity; tiresomeness; slowness; tedium while monotone is a single unvaried tone of speech or a sound.

As an adjective monotone is

(of speech or a sound) having a single unvaried pitch.

As a verb monotone is

(ambitransitive) to speak in a monotone.

Monotony is a related term of tediousness.

As nouns the difference between monotony and tediousness

is that monotony is tedium as a result of repetition or a lack of variety while tediousness is the quality of being tedious; wearisomeness; prolixity; tiresomeness; slowness; tedium.

As a noun tediousness is

the quality of being tedious; wearisomeness; prolixity; tiresomeness; slowness; tedium.

Ennui is a related term of tediousness.

As nouns the difference between ennui and tediousness

is that ennui is a gripping listlessness or melancholia caused by boredom; depression while tediousness is the quality of being tedious; wearisomeness; prolixity; tiresomeness; slowness; tedium.

Tediousness is a related term of weariness.

As nouns the difference between tediousness and weariness

is that tediousness is the quality of being tedious; wearisomeness; prolixity; tiresomeness; slowness; tedium while weariness is exhaustion, fatigue or tiredness.

Dullness is a related term of tediousness.

As nouns the difference between dullness and tediousness

is that dullness is the quality of being slow to understand things while tediousness is the quality of being tedious; wearisomeness; prolixity; tiresomeness; slowness; tedium.

Boredom is a synonym of tediousness.

As nouns the difference between boredom and tediousness

is that boredom is (uncountable) the state of being bored while tediousness is the quality of being tedious; wearisomeness; prolixity; tiresomeness; slowness; tedium.

Tediousness is a related term of doldrums.

As nouns the difference between tediousness and doldrums

is that tediousness is the quality of being tedious; wearisomeness; prolixity; tiresomeness; slowness; tedium while doldrums is a part of the ocean near the equator, abounding in calms, squalls, and light, baffling winds, which sometimes prevent all progress for weeks – so called by sailors.