WordNet sense 1 (having a surface free from roughness or bumps or ridges or irregularities):

smooth

WordNet sense 2 (firmly fastened or secured against opening):

barred, secured, bolted, latched, locked

WordNet sense 3 (firmly closed or secured):

fastened

WordNet sense 4 (not admitting of passage or capable of being affected):

impervious, imperviable

WordNet sense 5 (unrestrained by convention or morality):

debauched, degenerate, dissipated, dissolute, libertine, profligate, riotous, degraded, degenerate

WordNet sense 6 (hurried and brief):

flying

WordNet sense 7 (moving rapidly or performed quickly or in great haste):

hurried

WordNet sense 8 (securely fixed in place):

firm, immobile

WordNet sense 9 (abstaining from food):

fasting

WordNet sense 10 (very fast; as if with wings):

winged

WordNet sense 11 (characterized by speed; moving with or capable of moving with high speed):

rapid, speedy

WordNet sense 12 (accomplished rapidly and without delay):

quick

WordNet sense 13 (performed with little or no delay):

immediate, prompt, straightaway

WordNet sense 14 (moving very fast):

fleet, swift

WordNet sense 15 (without unnecessary stops):

express

WordNet sense 16 (very fast; capable of quick response and great speed):

hot

WordNet sense 17 (speeded up, as of an academic course):

accelerated

WordNet sense 18 (unwavering in devotion to friend or vow or cause):

loyal, truehearted

WordNet sense 19 (steadfast in affection or allegiance):

faithful

WordNet sense 20 (firmly or tightly):

tight