Lightweight Alloys Will Soon Make A Sliding Egress Window Lighter

The meaning of LIGHTWEIGHT is one of less than average weight; specifically : a boxer in a weight division having a maximum limit of 135 pounds for professionals and 132 pounds for amateurs. How. LIGHTWEIGHT definition: 1. weighing only a little or less than average: 2. not showing deep understanding or knowledge of.. Learn more. Definition of lightweight adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. 1. Weighing relatively little; not heavy: lightweight clothing; a lightweight wood. 2. Sports Of, relating to, or characteristic of a lightweight: the lightweight title. 3. Having no significance or influence: a. lightweight, n. & adj. meanings, etymology, pronunciation and more in the Oxford English Dictionary

LIGHTWEIGHT definition: light in weight. See examples of lightweight used in a sentence. being lighter in weight, texture, etc., than another item or object of identical use, quality, or function: a lightweight topcoat; a lightweight alloy for ship construction. Nov 18, 2025 · Adjective lightweight (comparative more lightweight or lighterweight, superlative most lightweight or lightestweight) Lacking in earnestness, ability, or profundity. Having less than average. If you describe someone as a lightweight, you are critical of them because you think that they are not very important or skilful in a particular area of activity.