All brisk antonyms

adj brisk

• idle — not working or active; unemployed; doing nothing: idle workers.
• inactive — not active: an inactive volcano.
• lethargic — of, relating to, or affected with lethargy; drowsy; sluggish; apathetic.
• lazy — averse or disinclined to work, activity, or exertion; indolent.
• sluggish — indisposed to action or exertion; lacking in energy; lazy; indolent: a sluggish disposition.
• lifeless — not endowed with life; having no life; inanimate: lifeless matter.
• slow — moving or proceeding with little or less than usual speed or velocity: a slow train.
• hyper-energetic — possessing or exhibiting energy, especially in abundance; vigorous: an energetic leader.
• temperate — moderate or self-restrained; not extreme in opinion, statement, etc.: a temperate response to an insulting challenge.
• warm — having or giving out a moderate degree of heat, as perceived by the senses: a warm bath.
• boring — Someone or something boring is so dull and uninteresting that they make people tired and impatient.
• depressing — Something that is depressing makes you feel sad and disappointed.
• dull — not sharp; blunt: a dull knife.