Available

Present and ready for use; at hand; accessible. adjective

Capable of being gotten; obtainable. adjective

Qualified and willing to serve or assist. adjective

Capable of being used in a chemical reaction. adjective

Present, as in soil, and capable of being used by plants as a nutrient. adjective

Profitable; advantageous; having efficacy.

Having sufficient power, force, or efficacy for the object; valid.

Capable of being used or employed with advantage; attainable; accessible; at one's disposal: as, his resources were not available at the time.

Advailable is a rare and obsolete form.

Having sufficient power, force, or efficacy, for the object; effectual; valid. adjective

Such as one may avail one's self of; capable of being used for the accomplishment of a purpose; usable; profitable; advantageous; convertible into a resource adjective