Discordia, Eris, abrading, abrasion, animosity, antagonism, antipathy, argument, attrition, backlash, bad blood, belligerence, bickering, caressing, chafing, clash, clashing, collision, competition, conflict, confutation, contention, contradiction, contraposition, contrariety, contrariness, controversy, counteraction, counterposition, counterworking, crankiness, cross-purposes, crotchetiness, despitefulness, disaccord, disaffinity, disagreement, discord, discordance, discordancy, disharmony, dispute, dissension, dissent, enmity, erosion, feeling, fingering, fractiousness, fretting, fricative, frictional, frottage, grating, handling, hate, hatred, hostility, ill feeling, ill will, incompatibility, incompatibleness, inharmoniousness, inharmony, inimicalness, interference, jangle, jar, kick, malevolence, malice, malignity, manipulation, mischief, negativeness, nonconformity, noncooperation, obstinacy, open conflict, opposition, opposure, oppugnance, oppugnancy, palpation, perverseness, petting, pressure, quarrelsomeness, reaction, recalcitrance, recoil, refractoriness, renitency, repercussion, repugnance, resistance, revolt, rivalry, rub, rubbing, scraping, spite, spitefulness, strained relations, strife, stroking, swimming upstream, tension, touching, uncooperativeness, unharmoniousness, unpleasantness, vying, wrangling
counteraction, opposition, contrariety, antagonism, polarity, clashing, collision, interference, inhibition, resistance, renitency, friction
, reaction, retroaction, counterblast, neutralization, vis inertiae, check, voluntary opposition &c, voluntary resistance, repression, opposites, action and reaction, yang and yin, yang-yin (contrariety), counteracting, antagonistic, conflicting, retroactive, renitent, reactionary, contrary, although, in spite of, against, for every action there is a reaction, equal in force and opposite in direction.
, attrition, rubbing, abrasion, scraping, confrication, detrition, contrition, affriction, abrasion, arrosion, limature, frication, rub, elbow grease, rosin, massage, roughness, rolling friction
, sliding friction
, starting friction
, anatriptic, attrite.