dispensable

adj

1. Able to be done without; easily replaced.
2. Capable of being dispensed.

   “The reward could be a preferred food, a sticker, blowing some bubbles, a noisemaker the child enjoys, a pat on the back, or some other easily dispensable reward that does not take the child away from the task at hand for more than a moment or two.”

3. (usually)Subject to dispensation; possible to relax, exempt from, or annul.

   “Jones' use of the term 'Ecclesiastical Law' in his definition of dispensations in Roman Catholic canon law points to the Roman Catholic distinction between divine law, from which no dispensation is possible, and merely ecclesiastical law, which is dispensable in certain circumstances.”

4. Not essential to be taken in as part of an organism's diet, as it can be synthesized de novo.

   “The difference in absorption rate is not surprising since whey has a high percentage of indispensable amino acids, which are absorbed more rapidly than dispensable amino acids.”

noun

1. Something that can reasonably be dispensed with; something unnecessary.