Letter: i
- intrusion, access, admission, encroachment, entrance, entry, extraneousness, foreignness, import, importation, importing, impropriety, inappropriateness, inauspiciousness, income, incoming

- intrusive, alien, barbarian, barbaric, barbarous, busy, entering, exotic, exterior, external, extraneous, extraterrestrial, extrinsic, foreign, foreign-born, forward

- intrusiveness, curiosity, impertinence, meddling, presumption, temerity

- intuit, divine, feel, sense

- intuition, ESP, clairvoyance, common sense, extrasensory perception, feeling, foreboding, foresight, funny feeling, hunch, impression, insight, instinct, intimation, intuitive impression, intuitiveness

- intuitive impression, feeling, foreboding, hunch, impression, intimation, intuition, premonition, presentiment, suspicion

- intuitive reason, anticipation, clairvoyance, insight, inspiration, precognition, satori, second sight, sixth sense

- intuitive, anticipatory, clairvoyant, direct, far-sighted, farseeing, feeling, foreknowing, foreseeing, foreshadowing, foresighted, forewarning, heavy with meaning, immediate, indicative, instinctual

- intuitiveness, anticipation, clairvoyance, insight, inspiration, intuition, precognition, satori, second sight, sixth sense

- inundate, afflict, aggrieve, anguish, baptise, be prodigal with, board, break down, bring to tears, bury, cascade, cataract, crush, cut up, deluge, desolate

- inundated, afloat, at flood, awash, bathed, broken-down, broken-hearted, buried, crushed, cut up, deluged, desolated, dipped, drenched, dribbling, dripping

- inundation, alluvium, aspersion, avalanche, baptism, bath, bathing, burial, cataclysm, cataract, dampening, damping, deluge, dewing, dip, dipping

- inure, acclimate, acclimatize, accommodate, accustom, adapt, adjust, break, break in, brutalize, callous, case harden, condition, confirm, discipline, domesticate

- inured, acclimated, acclimatized, accommodated, accustomed, adapted, adjusted, brazen, callous, calloused, case-hardened, conditioned, conscienceless, experienced, familiarized, flinty

- invade, adopt, advance upon, appropriate, arrogate, assume, barge in, beset, board, break bounds, break in, break in upon, burst in, butt in, charge in, come between

- invader, assailant, enemy, intruder, mugger, outsider, raider

- invading, belligerent, driving, invasive, irruptive

- invalid, afflict, ailing, anchoress, anchorite, apoplectic, arthritic, ascetic, bad, barren, bedridden invalid, black, blank cartridge, bootless, case, castrato

- invalidate, abate, abolish, abrogate, annihilate, annul, belie, blow sky-high, blow up, bring to naught, bring to nothing, buffer, cancel, cancel out, come to nothing, counterbalance

- invalidated, belied, confounded, confuted, crippled, deflated, denied, disabled, disarmed, discarded, discredited, dismissed, disproved, disputed, disqualified, exploded

- invalidation, abolishment, abolition, abrogation, annulment, cancel, cancellation, counterbalancing, countermand, disproof, disproving, explosion, expose, exposure, frustration, negation

- invalided, confined, down, laid up, prostrate

- invalidism, debility, delicacy, delicate health, exhaustion, fragility, frailty, hypochondria, incapacity, infirmity, instability, languishing, morbidity, senility, wasting

- invalidity, debility, delicacy, delicate health, evilness, exhaustion, failure, fatuity, fragility, frailty, futility, hypochondria, inanity, incongruity, inconsistency, ineffectiveness

- invaluable, dear, golden, inestimable, precious, priceless, rich, valuable, worthy

- invariability, aplomb, balance, beaten path, constancy, cool, drone, durability, duration, endurance, equilibrium, hardening, homoeostasis, humdrum, immobility, inveteracy

- invariable, abiding, accordant, alike, automatic, balanced, blah, broken-record, changeless, consistent, consonant, constant, continuous, correspondent, dreary, dry

- invariably, abidingly, all over, all the time, always, at all times, at every turn, constantly, continually, cosmically, enduringly, ever, everywhere, in every instance, inflexibly, internationally

- invasion, adoption, aggression, air attack, air raid, air strike, appropriation, arrogation, assault, assumption, attack, blitzkrieg, boarding, breach, drive, encroachment

- invasive, advancing, assailing, assaulting, attacking, charging, driving, entering, in, inbound, incoming, inflowing, ingoing, interfering, interruptive, intrusive
