Synonyms of the word

uninteresting

• adj. Arousing little or no interest; boring or uneventful.

boring

• n. A pit or hole which has been bored.
• n. Fragments thrown up when something is bored or drilled.
• v. present participle of bore.
• adj. Causing boredom; unable to engage or hold one's interest.

deadening

• v. present participle of deaden.
• n. A forest clearing created by girdling the trees.

dull

• adj. Lacking the ability to cut easily; not sharp.
• adj. Boring; not exciting or interesting.
• adj. Not shiny; having a matte finish or no particular luster or brightness.
• adj. Not bright or intelligent; stupid; slow of understanding.
• adj. Sluggish, listless.
• adj. Cloudy, overcast.
• adj. Insensible; unfeeling.
• adj. Heavy; lifeless; inert.
• adj. (of pain etc) Not intense; felt indistinctly or only slightly.
• adj. (of a noise or sound) Not clear, muffled.
• v. (transitive) To render dull; to remove or blunt an edge or something that was sharp.
• v. (transitive) To soften, moderate or blunt; to make dull, stupid, or sluggish; to stupefy.
• v. (intransitive) To lose a sharp edge; to become dull.
• v. To render dim or obscure; to sully; to tarnish.

earthbound

• adj. confined to the Earth.
• adj. unimaginative or mundane.
• adj. heading towards Earth.

ho-hum

• adj. (dated, US, Canada) Boring; not interesting or novel.
• interj. (dated, US, Canada) Used to express boredom, disinterest or lack of novelty.

insipid

• adj. Unappetizingly flavorless.
• adj. Flat; lacking character or definition.
• adj. Cloyingly sweet or sentimental.

institutional

• adj. Of, pertaining to, characteristic of, or organized along the lines of an institution.
• adj. Instituted by authority.
• adj. Elementary; rudimentary.

irksome

• adj. Marked by irritation or annoyance; disagreeable; troublesome by reason of long continuance or repetition;…

jejune

• adj. Not nutritious.
• adj. Lacking matter; empty; devoid of substance.
• adj. Naive; simplistic.

narcotic

• n. Any substance or drug that reduces pain, induces sleep and may alter mood or behaviour.
• n. Any type of numbing drug.
• n. Certain illegal drugs.
• adj. Of, or relating to narcotics.
• adj. Inducing sleep; causing narcosis.

pedestrian

• adj. (not comparable) Of or intended for those who are walking.
• adj. (comparable) Ordinary, dull; everyday; unexceptional.
• n. Somebody walking rather than using a vehicle; somebody traveling on foot on or near a roadway.

ponderous

• adj. Heavy, massive, weighty.
• adj. (figuratively, by extension) Serious, onerous, oppressive.
• adj. Clumsy, unwieldy, or slow, especially due to weight.
• adj. Dull, boring, tedious; long-winded in expression.
• adj. (rare) Characterized by or associated with pondering.
• adj. (obsolete) Dense.

prosaic

• adj. Pertaining to or having the characteristics of prose.
• adj. (of writing or speaking) Straightforward; matter-of-fact; lacking the feeling or elegance of poetry.
• adj. (main usage, usually of writing or speaking but also figurative) Overly plain, simple or commonplace,…

prosy

• adj. Unpoetic (of speech or writing); dull and unimaginative.
• adj. Behaving in a dull way (of a person); boring, tedious.

putdownable

• adj. Alternative form of put-downable.

slow

• adj. Taking a long time to move or go a short distance, or to perform an action; not quick in motion; proceeding…
• adj. Not happening in a short time; spread over a comparatively long time.
• adj. Of reduced intellectual capacity; not quick to comprehend.
• adj. Not hasty; not precipitate; lacking in promptness; acting with deliberation.
• adj. (of a clock or the like) Behind in time; indicating a time earlier than the true time.
• adj. Lacking spirit; deficient in liveliness or briskness.
• adj. (of a period of time) Not busy; lacking activity.
• v. (transitive) To make (something) run, move, etc. less quickly; to reduce the speed of.
• v. (transitive) To keep from going quickly; to hinder the progress of.
• v. (intransitive) To become slow; to slacken in speed; to decelerate.
• n. Someone who is slow; a sluggard.
• n. (music) A slow song.
• adv. Slowly.

soporiferous

• adj. (archaic) soporific, sleep-inducing.

soporific

• n. Something inducing sleep, especially a drug.
• n. (figuratively) Something boring or dull.
• adj. Tending to induce sleep.
• adj. (figuratively) Boring, dull.

tedious

• adj. Boring, monotonous, time consuming, wearisome.

tiresome

• adj. Causing fatigue or boredom; wearisome.

unexciting

• adj. Not exciting.

unstimulating

• adj. That does not stimulate.

wearisome

• adj. Tiresome, tedious or causing fatigue.