4000 Duolingo Vocabulary List

something that annoys or gives trouble and vexation; something that is offensive or noxious

failing to be careful enough or to give enough attention to your responsibilities; inattentive

beginning; start; origin; time at which something is supposed to begin

the feeling of sickness in the stomach by an urge to vomit; strong aversion; disgust

invalid; void; nullified; having no legal force; invalid

a colorless, odorless gaseous element that gives a red glow in a vacuum tube

beginning; start; origin; time at which something is supposed to begin

morally or legally constraining; required; binding

any of several marine mollusks

an alkaloid poison that occurs in tobacco

of or relating to or involving light or optics

covered or obscured, as with clouds or mist; gloomy; melancholy

failing to be careful enough or to give enough attention to your responsibilities; inattentive

the line that appears to bound an object; the shape of an object or figure; summary of a written work or speech

altogether; entirely; without reservation or exception

healthy; nourishing;  providing nutrition

causing anger, displeasure, resentment, or affront

not easily explained; beyond from the usual or expected; not divisible by two

failing to be careful enough or to give enough attention to your responsibilities; inattentive

healthy; nourishing;  providing nutrition

contradictory; conflicting; adverse

assault; a very powerful attack

inattentive or unmindful; lacking all memory; forgetful

impenetrable by light; not transparent; not reflecting light; having no luster

defeat another in competition or conflict; conquer; prevail over

offend grossly against; produce anger or resentment in

act of obstructing; any structure that makes progress difficult

impenetrable by light; not transparent; not reflecting light; having no luster

liberal; not conforming to or in accord with the tradition

the feeling of sickness in the stomach by an urge to vomit; strong aversion; disgust

conformed to order; in order; regular; well-regulated

morally or legally constraining; required; binding

open to view; not secret or hidden

the line that appears to bound an object; the shape of an object or figure; summary of a written work or speech

not second hand; not copied or translated from something else

inattentive or unmindful; lacking all memory; forgetful

small cut; V-shaped or U-shaped indentation carved or scratched into a surface

far most; utmost; outmost; most distant from the center or inside

liberal; not conforming to or in accord with the tradition

beginning; start; origin; time at which something is supposed to begin