frictionless

having or marked by agreement in feeling or action enjoys an easygoing and frictionless relationship with her mother-in-law Synonyms agreeable, amicable, compatible, congenial, harmonious, kindred, unanimous, unitedRelated Words pacific, peaceable, peaceful; collaborating, cooperative, symbiotic, synergetic, synergic; noncompetitive, nonconflicting, uncompetitive; sympathetic, tolerant, understanding; affable, amiable, cordial, friendly, genial, neighborlyNear Antonyms antagonistic, antipathetic, clashing, conflicting, hostile, inimical, unfriendly; belligerent, contentious, quarrelsome; contradicting, contradictory, contrary, opposing, opposite; competing, competitive, rivaling (or rivalling)Antonyms disagreeable, discordant, disharmonious, disunited, incompatible, inharmonious, uncongenial