There are several Latin words meaning "vigorous":
vigens, validus, acer, fortis, strenuus.
The word validus in Latin means "strong, vigorous". Of people, it can mean "healthy"; of medicines, "effective".
It doesn't mean anything; it's a string of Latin words with no grammatical connections between them - probably the output of an automatic translator. In order of appearance, the words mean "to be" - "vigorous" - "inner organs" - "soul" - "kiss" (or "of foundations")
"Strenuissima" is a Latin superlative adjective derived from the word "strenuus," meaning "active" or "vigorous." In Latin, superlative forms are used to indicate the highest degree of a quality. Therefore, "strenuissima" can be translated to mean "very active" or "most vigorous" in English.
Violent, vicious, rough, lively
Other words for strong or vigorous are robust or active.
Capáx or Peritús are the words which mean efficient in Latin.
These words do not exist in Latin.
Words that mean the same as well are healthy, able-bodied, fine, fit, and vigorous. Those are all synonyms. Som antonyms are ill and sickly.
Dura is the feminine form of the adjective durus, meaning hard, harsh, hardy, vigorous, stern, unfeeling, inflexible, burdensome or difficult.
The words are Medieval Latin and mean, literally, Great Charter
To be honest I'd focus on basic grammar before adding words such as vigorous.
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