lay low

bending or passing far downward; deep: a low bow.

(of a garment) low-necked; décolleté: The dress she wore was fashionably low.

rising but slightly from a surface: a low relief on a frieze.

of less than average or normal height or depth, as a liquid or stream: The river is low this time of year.

near the first of a series: a low number.

ranked near the beginning or bottom on some scale of measurement: a low income bracket.

indicating the bottom or the point farthest down: the low point in his creative life.

lacking in strength, energy, or vigor; feeble; weak: to feel low and listless.

providing little nourishment or strength, as a diet.

of small number, amount, degree, force, intensity, etc.: low visibility; a generator with a low output.

indicated or represented by a low number: A low latitude is one relatively near the equator.

soft: subdued; not loud: a low murmur.

Music. produced by relatively slow vibrations, as sounds; grave in pitch.

assigning or attributing little worth, value, excellence, or the like: a low estimate of a new book.

containing a relatively small amount: a diet low in starches.

nearing depletion; not adequately supplied: low on funds; Our stock of towels is low.

depressed or dejected: low spirits.

far down in the scale of rank or estimation; humble: of low birth.

of inferior quality or character: a low grade of fabric; a low type of intellect.

lacking in dignity or elevation, as of thought or expression.

mean, base, or disreputable: low tricks; low companions.

coarse or vulgar: entertainment of a low sort.

Boxing. struck or delivered below a contestant's belt.

Biology. having a relatively simple structure; not complex in organization.

Phonetics. (of a vowel) articulated with a relatively large opening above the tongue, as the vowels of hat, hut, hot, ought, etc. Compare high (def. 23).

Automotive. of, pertaining to, or operating at the gear transmission ratio at which the drive shaft moves at the lowest speed with relation to the speed of the engine crankshaft, used especially for temporarily overcoming the weight or inertia of the vehicle; first: low gear.

Baseball. (of a pitched ball) passing the plate at a level below that of the batter's knees: a low curve.

Cards. having less value than other cards: a low card.

Metallurgy. having a relatively small amount of a specified constituent (usually used in combination): low-carbon steel.

Chiefly British. holding to Low Church principles and practices.

at or to a low pitch, volume, intensity, etc.: to turn the radio low; lights turned down low.

in a low tone; softly; quietly; to speak low.

Archaic. far down in time; late.

Slang. a period of intense depression or discomfort, when the effects of a drug have subsided.