theatrical β of or relating to the theater or dramatic presentations: theatrical performances.
humdrum β lacking variety; boring; dull: a humdrum existence.
tumid β swollen, or affected with swelling, as a part of the body.
ordinary β of no special quality or interest; commonplace; unexceptional: One novel is brilliant, the other is decidedly ordinary; an ordinary person.
vivid β strikingly bright or intense, as color, light, etc.: a vivid green.
repetitive β pertaining to or characterized by repetition.
casual β If you are casual, you are, or you pretend to be, relaxed and not very concerned about what is happening or what you are doing.
stale β not fresh; vapid or flat, as beverages; dry or hardened, as bread.
archaic β Archaic means extremely old or extremely old-fashioned.
arid β Arid land is so dry that very few plants can grow on it.
blah β You use blah, blah, blah to refer to something that is said or written without giving the actual words, because you think that they are boring or unimportant.
colorless β Something that is colorless has no color at all.
colourless β Something that is colourless has no colour at all.
common β If something is common, it is found in large numbers or it happens often.
commonplace β If something is commonplace, it happens often or is often found, and is therefore not surprising.
dead β A person, animal, or plant that is dead is no longer living.
familiar β well-acquainted; thoroughly conversant: to be familiar with a subject.
hackneyed β let out, employed, or done for hire.
heavy β of great weight; hard to lift or carry: a heavy load.
hoary β gray or white with age: an old dog with a hoary muzzle.
insipid β without distinctive, interesting, or stimulating qualities; vapid: an insipid personality.
jejune β without interest or significance; dull; insipid: a jejune novel.
monotonous β lacking in variety; tediously unvarying: the monotonous flat scenery.