Impressment rhymes with:
assessment, reassessment, advancement, announcement, announcment, assessment, basement, bemusement, commencement, debasement, disbursement, displacement, embarrassment, emplacement, endorsement, enforcement, engrossment, enhancement, enticement, financement, harassment, inducement, osment, outplacement, placement, pronouncement, reassessment, reimbursement, reinforcement, replacement, retracement
Impressment sounds like:
impersonate, impersonated, impoverishment, impregnate, impregnated, imprisoned, imprisonment, infrequent