4. forsake, forswear, reject, discard, relinquish; renounce, abjure, repudiate, disown; depart from, withdraw from, secede; revolt, mutiny, disobey, rebel,
defection, n. 1. (used in reference to allegiances) forsaking, forswearing; rejection, rejecting, renunciation, renouncement, abjuration, repudiation.
2. treason, perfidy, betrayal; unfaithfulness, faithlessness, disloyalty, recreancy, recreance; apostasy, heresy.
3. secession, withdrawal, falling away, dropping out, SI. copping out, turning one's back on; backsliding, recidivism, dereliction.
4. conversion, changeover, switchover; reversal, aboutface, turnabout, SI. switcheroo, SI. a 180°, Inf. flip-flop.
5. failure, lack, loss, deficiency. See - defect (def. 2).
defective, adj. 1. faulty, imperfect, incomplete,
lacking, wanting, deficient; inaccurate, incorrect, erroneous, unsound, infirm, weak, poor, inefficient, sloppy; marred, flawed, impaired, bruised, blemished, broken, disfigured, injured, mutilated, warped, deformed; in disrepair, inoperative, inoperable, not working, out of order, out of commission, Inf. on the blink, SI. on the fritz, SI. on the bum.
2. Psychology, mentally deficient or incompetent or unsound, feeble-minded, retarded, simple; dim-witted, half-witted, imbecilic, idiotic, moronic, SI. not all there; Euph. exceptional, Euph. special,
defend, v. 1. Usu.
defend from or
against protect, shelter, screen, shield; fight for, take up the cudgels for; guard, safeguard, ward off, fend off, parry; garrison, fortify, arm, secure, hold the fort, preserve, keep, save.
2. support, bolster, advocate, endorse, stand behind or beside, stand up for, make a stand for, stick up for, go to bat for; represent, make a case for, argue for, speak in behalf of, hold a brief for, Law. plead; uphold, maintain, sustain, vindicate, justify; (of oneself) rationalize, give reasons for, apologize, palliate, extenuate, make excuses,
defender, n. 1. protector, guard, bodyguard, escort, convoy; guardian, watchman, caretaker, warder, warden, keeper, preserver.
2. supporter, bolsterer, endorser, seconder, backer, advocate, champion; upholder, maintainer, sustainer, vindicator, justifier; (all of law) lawyer, attorney, counselor, counsel, pleader, Brit, barrister, Brit. solicitor.
defense, n. 1. protection, shelter, shield, buckler, aegis, screen, armor, mail, cover, Rare, muniment; guard, watch, ward, custody, care, safekeeping; fortification, fortress, stronghold, garrison, fort, tower of strength; bulwark, bastion, rampart, parapet, redoubt; barricade, buttress, palisade; security, safeguard, palladium.
2. vindication, justification, argument, plea, apologia; apology, extenuation, palliation, excuse,
defenseless, adj. 1. unprotected, unguarded, unsheltered; unfortified, unarmed, weaponless, weak, helpless, powerless, impotent; insecure, unsafe, dangerous, perilous, precarious.
2. vulnerable, uncovered, exposed, naked, wide open; open to attack, pregnable, penetrable, in-vadable, attackable, assaultable, assailable,
defensible, adj. 1. invulnerable, impregnable, impenetrable, secure, safe, holdable; unattackable, unas-saultable, unassailable; fortified, armed, ironclad, bulletproof, shellproof, bombproof.
2. justifiable, vindicable, defendable, supportable; tenable, maintainable, sustainable; pardonable, forgivable, venial, excusable, allowable, permissible.