commonplace

American Heritage® Dictionary of the English Language, Fourth Edition

1. adj. Having no remarkable features, characteristics, or traits; ordinary.
2. n. A trite or obvious remark; a platitude: "the solidified commonplaces of established wisdom” ( John Simon). See Synonyms at cliché.
3. n. Something that is ordinary or common.
4. n. Archaic A passage marked for reference or entered in a commonplace book.

Century Dictionary and Cyclopedia

1. n. A memorandum of something that is likely to be again referred to; a fact or quotation or argument that is or may be made useful in one or another way or in a variety of ways, and so is made note of for handy use.
2. n. A well-known, customary, or obvious remark; a trite or uninteresting saying.
3. n. Anything occurring frequently or habitually; anything of ordinary or usual character; especially, anything that is so common as to be uninteresting; such common things collectively.
4. Not novel or striking; trite; hackneyed: as, a commonplace remark.
5. Ordinary; common; uninteresting; without originality or marked individuality: as, a commonplace person.
6. To enter particulars regarding in a commonplace-book.
7. To indulge in commonplace statements.

Wiktionary

1. adj. ordinary; having no remarkable features
2. n. A platitude or cliché.
3. n. Something that is ordinary.
4. v. To make a commonplace book.
5. v. obsolete To utter commonplaces; to indulge in platitudes.

GNU Webster's 1913

1. adj. Common; ordinary; trite.
2. n. An idea or expression wanting originality or interest; a trite or customary remark; a platitude.
3. n. A memorandum; something to be frequently consulted or referred to.
4. v. To enter in a commonplace book, or to reduce to general heads.
5. v. obsolete To utter commonplaces; to indulge in platitudes.

WordNet 3.0

1. n. a trite or obvious remark
2. adj. repeated too often; overfamiliar through overuse
3. adj. not challenging; dull and lacking excitement
4. adj. completely ordinary and unremarkable