Antonyms for the phrase "puts into words" could include "mutes," "suppresses," "bottles up," or "silences." When we say someone "puts something into words," we are describing the act of expressing a thought, feeling or idea through language. However, the opposite of this would be to limit or withhold expression, to keep something to oneself or to remain silent. While there may be situations where it is appropriate to keep quiet, it is generally better to be able to communicate effectively using language. This is why being familiar with both antonyms and synonyms of words and phrases can expand our communication skills and insight.