Synonyms of the word

perturbing

• v. present participle of perturb.

distressful

• adj. Causing or having distress, strain, or anxiety.

distressing

• adj. Causing distress; upsetting.
• v. present participle of distress.

disturbing

• adj. Causing distress or worry; upsetting or unsettling.
• v. present participle of disturb.

heavy

• adj. (of a physical object) Having great weight.
• adj. (of a topic) Serious, somber.
• adj. Not easy to bear; burdensome; oppressive.
• adj. (Britain, slang, dated) Good.
• adj. (dated, late 1960s, 1970s, US) Profound.
• adj. (of a rate of flow) High, great.
• adj. (slang) Armed.
• adj. (music) Louder, more distorted.
• adj. (of weather) Hot and humid.
• adj. (of a person) Doing the specified activity more intensely than most other people.
• adj. (of food) High in fat or protein; difficult to digest.
• adj. Of great force, power, or intensity; deep or intense.
• adj. Laden to a great extent.
• adj. Laden with that which is weighty; encumbered; burdened; bowed down, either with an actual burden, or with…
• adj. Slow; sluggish; inactive; or lifeless, dull, inanimate, stupid.
• adj. Impeding motion; cloggy; clayey.
• adj. Not raised or leavened.
• adj. Having much body or strength; said of wines or spirits.
• adj. (obsolete) With child; pregnant.
• adv. heavily.
• adv. (India, colloquial) very.
• n. A villain or bad guy; the one responsible for evil or aggressive acts.
• n. (slang) A doorman, bouncer or bodyguard.
• n. (aviation) A large multi-engined aircraft.
• v. (often with "up") To make heavier.
• v. To sadden.
• v. (Australia, New Zealand, informal) To use power and/or wealth to exert influence on, e.g., governments…
• adj. Having the heaves.

troubling

• adj. distressing, worrying.
• v. present participle of trouble.
• n. The infliction of trouble or distress.

worrisome

• adj. Causing worry; perturbing or vexing.
• adj. (of a person) Inclined to worry.

worrying

• adj. Inducing worry.
• v. present participle of worry.
• n. The act of worrying or harassing somebody.