Reverse Dictionary: FAITHFUL

ADJECTIVES
► AEFALD single-minded, simple-hearted, honest, faithful → 1796 Sc.
► AEFAULD free from duplicity; sincere, honest, faithful; plain, straightforward → a1000
► EVER-LOVING devoted; faithful → 1930s Amer. sl.
► FAYFUL faithful → a1400 obs.
► FEAL faithful, firm in allegiance, constant → 1568 obs.
► FIABLE faithful → 1483 obs.
► FIDELIOUS faithful → 1650 obs.
► I-TREOWE true, faithful → c1000 obs.
► LAWFUL observant of law or duty; law-abiding, faithful, loyal → c1375 obs.
► LEAFFUL faithful, believing → c950 obs.
► LEAL loyal, faithful, honest, true, upright, sincere → a1300 obs. exc. Sc. & N. Eng. dial.
► LEAL-HEARTED faithful, sincere, loyal-hearted → 1728 Sc.
► LEWTIFULL faithful, loyal; upright, honourable → 1563 Sc obs.
► SOOTHFAST adj. speaking or adhering to the truth; veracious, truthful, true, faithful, loyal → 825 arch.
► SPOT-ON exact, precise; faithful → 1956

ADVERBS
► AEFAULDLY in a truthful and sincere manner; without duplicity; honestly, faithfully → 1472 Sc.
► FAITHLY with fidelity; faithfully, loyally, steadfastly, truthfully → c1325 obs.
► FAYFULLY in a faithful manner, loyally, reliably → a1400 obs.
► LAWFULLY loyally, faithfully → c1500 obs.
► LEAL loyally, faithfully → a1300 obs. exc. Sc.
► LEALLY loyally, faithfully, truly → a1300
► LOYALLEMENT loyally, faithfully → 1549 obs.

NOUNS
► LAWTIE ► LAWTY loyalty, faithfulness, honourable behaviour, fidelity, honesty → 1678 Sc. obs.
► LEALNESS faithfulness, loyalty → 1882
► LEALTY faithfulness, loyalty → 1860 obs. exc. arch.
► LOYALTY conjugal faithfulness, fidelity → c1400 obs.
► SOOTHNESS n. a being true; truth, verity; fidelity, faithfulness; reality, fact → 1275 obs.

NOUNS – PERSON
► LEALMAN a loyal or faithful subject; a liegeman → 1871 Sc.
► MONOGAMIST a person who observes or advocates the custom of being married to only one person at a time; a person who  has only one living spouse; now, also, a person who remains faithful to one person during the course of a sexual relationship other than marriage → 1731
► STUCKY a faithful lover → 1930s W. Indies sl.