| Word | Definitions | Synonyms |
|---|---|---|
| altricial | (adjective) (of hatchlings) naked and blind and dependent on parents for food | - |
| altruism | (noun) the quality of unselfish concern for the welfare of others | Synonyms: selflessness |
| altruist | (noun) someone who makes charitable donations intended to increase human well-being | Synonyms: philanthropist |
| altruistic | (adjective) showing unselfish concern for the welfare of others | Synonyms: selfless |
| altruistically | (adverb) in an altruistic manner | Synonyms: selflessly |