Capable of producing great physical force. Capable of withstanding great physical force. (of water, wind, etc.) Having a lot of power. Determined; unyielding. Highly stimulating to the senses. Having an offensive or intense odor or flavor. Having a high concentration of an essential or active ingredient. (specifically) Having a high alcoholic content. (grammar) Inflecting in a different manner than the one called weak, such as Germanic verbs which change vowels. (chemistry) That completely ionizes into anions and cations in a solution. (military) Not easily subdued or taken. Having wealth or resources. (slang, US) Impressive, good. Having a specified number of people or units. (of a disease or symptom) Severe; very bad or intense. (mathematics, logic) Having a wide range of logical consequences; widely applicable. (Often contrasted with a weak statement which it implies.) (of an argument) Convincing. In a strong manner.