Ant. Continuous, continual; perpetual, eternal.

Instantly. Immediately, forthwith, directly, at once, presently, straightway.

Ant. In the future, after a time.

Instigate. Incite, impel, move, urge, prompt, provoke, stimulate, rouse, influence, encourage, persuade, prevail upon.

Ant. Repress, restrain, discourage, withhold, retard.

Instil. Infuse, insinuate; implant, enforce, impress, inculcate, import, introduce.

Ant. Extract, remove, eliminate, eradicate, drain, extirpate.

Instinct, n. Impulse, proclivity, tendency, inclination, prompting, intuition.

Ant. Reason, deliberation, experience, judgment, elaboration, experiment.

Instinctive. Natural, spontaneous; impulsive, unreflecting; voluntary, intuitive.