| Main Entry: | impermeable |
| Part of Speech: | adjective |
| Definition: | impenetrable |
Synonyms: |
airtight, dense, hermetic, impassable, impervious, leak-proof, nonporous, sealed, water-resistant, waterproof, watertight |
| Main Entry: | airtight |
| Part of Speech: | adjective |
| Definition: | sealed |
Synonyms: |
closed, impenetrable, impermeable, shut |
Antonyms: |
loose, open, penetrable, permeable, unclosed, unsealed |
| Main Entry: | close |
| Part of Speech: | adjective |
| Definition: | dense, cramped |
Synonyms: |
circumscribed, close-grained, compact, confined, confining, congested, consolidated, cropped, crowded, firm, impenetrable, impermeable, jam-packed, narrow, packed, restricted, short, solid, substantial, thick, tight |
Antonyms: |
loose, open, uncramped |
| Main Entry: | compact |
| Part of Speech: | adjective |
| Definition: | condensed |
Synonyms: |
appressed, bunched, close, compressed, crowded, dense, firm, hard, impenetrable, impermeable, packed, pressed, solid, thick, tight |
| Notes: | a compact is a formal agreement on rights and conduct, a treaty is a compact between nations, and a contract is a compact between two business entities |
Antonyms: |
loose, slack, uncondensed |
| Main Entry: | firm |
| Part of Speech: | adjective |
| Definition: | inflexible |
Synonyms: |
close, close-grained, compact, compressed, concentrated, concrete, condensed, congealed, dense, fine-grained, hard, hardened, heavy, impenetrable, impermeable, impervious, inelastic, jelled, nonporous, refractory, rigid, set, solid, solidified, stiff, sturdy, substantial, thick, tough, unyielding |
Antonyms: |
flexible, loose, slack, soft, supple, weak, yielding |
| Main Entry: | impenetrable |
| Part of Speech: | adjective |
| Definition: | dense |
Synonyms: |
bulletproof, close, compact, firm, hard, hermetic, impassable, impermeable, impervious, inviolable, solid, substantial, thick, unpiercable |
Antonyms: |
clear, penetrable, permeable, porous, soft, thin |
| Main Entry: | impervious |
| Part of Speech: | adjective |
| Definition: | unable to be penetrated |
Synonyms: |
closed to, hermetic, immune, impassable, impassive, impenetrable, impermeable, imperviable, inaccessible, invulnerable, resistant, sealed, tight, unaffected, unapproachable, unmoved, unpierceable, unreceptive, watertight |
Antonyms: |
exposed, open, penetrable, responsive, sensitive, vulnerable |
| Main Entry: | tight |
| Part of Speech: | adjective |
| Definition: | sealed |
Synonyms: |
airtight, blind, blocked, bolted, choking, clumped, cramping, crushing, cutting, fast, fastened, firm, fixed, hermetic, hermetically sealed, impenetrable, impermeable, impervious, locked, nailed, obstructed, padlocked, pinching, plugged, proof, secure, short, shrunken, shut, skintight, slammed, smothering, snapped, sound, stopped up, tied, tied up, uncomfortable, watertight |
Antonyms: |
loose, open, unsealed, wide |
| Main Entry: | waterproof |
| Part of Speech: | adjective |
| Definition: | impervious to water |
Synonyms: |
impermeable, impervious, rainproof, sealed, tight, watertight |
| Main Entry: | waterproof |
| Part of Speech: | adjective |
| Definition: | impervious to water |
Synonyms: |
airtight, impermeable, impervious, sealed |
Antonyms: |
leaky |