| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | empty, hollowed out |
| Synonyms: | alveolate, arched, carved out, cavernous, cleft, concave, cup-shaped, cupped, curved, deep-set, depressed, dimpled, excavated, incurved, indented, infundibular, not solid, notched, pitted, striated, sunken, troughlike, unfilled, vacant, vaulted, void |
| Antonyms: | convex, full, raised, solid |
| Main Entry: | hollow |
| Part of Speech: | adjective |
| Definition: | meaningless |
| Synonyms: | empty, fruitless, futile, idle, nugatory, otiose, pointless, specious, unavailing, useless, vain, worthless |
| Antonyms: | earnest, meaningful, sincere, substantial |
| Main Entry: | hollow |
| Part of Speech: | adjective |
| Definition: | false, artificial |
| Synonyms: | cynical, deceitful, faithless, flimsy, hypocritical, insincere, treacherous, unsound, weak |
| Antonyms: | frank, genuine, honest, real, sincere, truthful |
| Main Entry: | absent |
| Part of Speech: | adjective |
| Definition: | deficient in something needed or usual |
| Synonyms: | bare, blank, devoid, empty, hollow, lacking, minus, missing, nonexistent, omitted, unavailable, vacant, vacuous, wanting |
| Antonyms: | sufficient |
| Main Entry: | affected |
| Part of Speech: | adjective |
| Definition: | changed in a bad or artificial way |
| Synonyms: | apish, artificial, assumed, awkward, campy, chichi*, conceited, contrived, counterfeit, counterfeited, faked, false, feigned, fraud*, gone Hollywood, ham, hammy, high falutin', hollow, imitated, insincere, melodramatic, ostentatious, overdone, pedantic, phony, playacting, pompous, precious, pretended, pretentious, put-on, schmaltzy, self-conscious, shallow, sham*, simulated, spurious, stiff, stilted, studied, superficial, theatrical, unnatural |
| Antonyms: | ok, unchanged, unhurt, unimpaired, uninjured |
| Main Entry: | artificial |
| Part of Speech: | adjective |
| Definition: | pretended; affected |
| Synonyms: | assumed, contrived, false, feigned, forced, hollow, insincere, labored, mannered, meretricious, phony*, put-on, spurious, theatrical, unnatural |
| Antonyms: | genuine, natural, unaffected, unpretentious |
| Main Entry: | blank |
| Part of Speech: | adjective |
| Definition: | expressionless |
| Synonyms: | deadpan, dull, empty, fruitless, hollow, immobile, impassive, inane, inexpressive, inscrutable, lifeless, masklike, meaningless, noncommittal, poker-faced, stiff, stupid, uncommunicative, unexpressive, vacant, vacuous, vague |
| Antonyms: | animated |
| Main Entry: | concave |
| Part of Speech: | adjective |
| Definition: | curved, depressed |
| Synonyms: | biconcave, cupped, dented, dimpled, dipped, excavated, hollow, hollowed, incurvate, incurvated, incurved, indented, round, rounded, sagging, scooped, sinking, sunken |
| Notes: | convex (from Latin convexus 'arched, vaulted') refers to a surface that curves outward, concave (from Latin concavus 'hollow') to a surface that curves inward |
| Antonyms: | convex, distended |
| Main Entry: | depressed |
| Part of Speech: | adjective |
| Definition: | concave, pushed down |
| Synonyms: | hollow, indented, recessed, set back, sunken |
| Antonyms: | bulging, convex, pushed up, raised |