English → Latin
“ineffective, ineffectual” in Latin
invalidusinfirm, impotent, weak, feebleinūtilisuseless, unserviceable, unprofitable; hurtful, injurious; void, null, invalid, without any legal usevaleōto have strength, influence, power; to avail; to be well, healthy, sound; to be worth, be worthysalūberhealthy, salubrious; salutary, beneficial; wholesome
Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864
ineffective, ineffectual
invalidus (invalid, without power or effect; opposed to fortis, valens; e.g. medicament: ☞ inefficax, not before Silver Age): inutilis (unfit; not to the purpose, opposed to utilis, saluber), alicui rei.
Quick answer
- What is the Latin word for ineffective, ineffectual?
- The usual Latin words for “ineffective, ineffectual” are invalidus, inūtilis, valeō; also salūber. The right choice depends on the sense; see the distinctions below.
Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.