The phrase "gush forth" typically refers to the flow of a liquid or emotion, with a sense of intensity or abundance. Antonyms for this phrase could include "trickle out," "dribble," "seep," "trickle," or "leak." These terms all connote a slower or less forceful movement or release. Alternately, antonyms for "gush forth" could include terms that suggest a lack of emotion or excessive reserve, such as "restrain," "choke," "suppress," or "hold back." Each of these ideas presents a contrasting image to the idea of a sudden, strong release or outpouring, highlighting the ways in which language can offer nuanced shades of meaning to convey different contexts and feelings.