Multifunctional agricultural adjuvant compositions ("MAACs") include at least one liquid component and one or more solid agricultural particles dispersed in the liquid component. The liquid component may include at least one methylated seed oil. Examples of the solid agricultural particles include ammonium sulfate, other water conditioners, amino acids, or polymers. The MAAC exhibits one or more desired functions depending on the quantity and composition of the liquid component, the quantity and composition of the solid agricultural particles, and, optionally, adding one or more surfactants and/or one or more additional components (e.g., rheology modifiers) to the MAAC. The desired functions of the MAAC may include at least one of a water conditioner, a surfactant, a high surfactant oil concentrate, a crop oil concentrate, or a drift reduction and a deposition adjuvant.