Find Antonyms
isotonic Antonyms
Opposite of isotonic
Because the opposite of isotonic shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
• adjective (Context 1)
Having the same osmotic pressure as another solution, especially that of human blood or cellular fluid, allowing water to pass across a cell membrane without changing the cell's volume.
Usage Example
"The nurse administered an hypertonic saline solution to rehydrate the patient safely."
Strongest
hypertonic
hypotonic
• adjective (Context 2)
Relating to or denoting muscular contraction in which the muscle changes length while maintaining constant tension.
Usage Example
"Squats, push-ups, and bicep curls are classic examples of isometric exercises."
Strongest
isometric
Similar words to isotonic
Words similar to isotonic shift depending on context. Common synonyms include:
isosmotic
Cite this Entry
Wordmom. (2026). Antonyms for Isotonic. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/isotonic