The Oxford Thesaurus An A-Z Dictionary of Synonyms INTRO ...

esourcefulness, adeptness, aptness, smartness, canniness, gift,
talent, ability, capability, faculty, deftness, handiness,
inventiveness, creativity, creativeness, imagination,
imaginativeness, originality: She displayed extraordinary
ingenuity in preparing the case against the plaintiff.
ingenuous adj. 1 na‹ve, simple, innocent, unsophisticated, childlike,
suggestible, artless, sincere, genuine, trusting, guileless,
natural, straight, uncomplicated, (fair and) square, honest,
fair, just, open, undeceitful, unaffected, undeceptive,
undissembling, unfeigning, (open and) above-board, Colloq on the
level: What ideas have you been implanting into the mind of
this ingenuous young girl? 2 frank, candid, open, trustworthy,
honourable, forthright, direct, straightforward, four-square,
honest, outspoken, blunt, bluff, bold, unreserved, free,
uninhibited, unabashed: I shall be ingenuous enough to confess
that what you heard about me is true.
ingrained adj. engrained, deep-rooted, fixed, inveterate, deep-seated,
fundamental, basic, essential, inherent, inborn, innate, inbred,
inherited, hereditary, organic, intrinsic, native, natural: He
has an ingrained fear of heights.
ingratiating
adj. fawning, grovelling, sycophantic, toadying, toad-eating,
servile, obsequious, flattering, time-serving, wheedling,
cajoling, unctuous, oily, buttery, sweet-talking, sugary,
saccharine, US blandiloquent, Colloq boot-licking, slimy, Brit
smarmy, US apple-polishing, Slang US brown-nosing: It is
Crawley's ingratiating manner that none of us can abide.
ingratitude
n. unthankfulness, ungratefulness, thanklessness,
unappreciativeness, non-recognition: Despite the favours they
had received, they showed their ingratitude by refusing to
contribute to the fund drive.
ingredient
n. constituent, element, part, component, factor; (pl.)
makings: Humour is a necessary ingredient in any working
relationship.
inhabit v. dwell in, reside in, live in, abide in, occupy, settle;