rough guess

supposition, assumption, assumed position, postulation, condition, presupposition, hypothesis, postulate, postulatum, theory; thesis, theorem; data; proposition, position; proposal (plan); presumption (belief); divination., conjecture; guess, guesswork, speculation; rough guess, shot; conjecturality; surmise, suspicion, sneaking suspicion., inkling, suggestion, hint; bare supposition, vague supposition, loose supposition, loose suggestion., association of ideas., conceit.

suppose, conjecture, surmise, suspect, guess, divine; theorize; presume, presurmise, presuppose; assume, fancy, wish, take it; give a guess, speculate, believe, dare say, take it into one's head, take for granted., put forth; propound, propose; start, put a case, submit, move, make a motion; hazard out, throw out a suggestion, put forward a suggestion, put forward conjecture., allude to, suggest, hint, put it into one's head., suggest itself (thought); run in the head (memory); marvel if, wonder if, wonder whether.

supposing; given, mooted, postulatory; assumed; suppositive, suppositious; gratuitious, speculative, conjectural, hypothetical, theoretical, academic, supposable, presumptive, putative; suppositional., suggestive, allusive.

if, if so be; an; on the supposition; ex hypothesi; in the case, in the event of; quasi, as if, provided; perhaps (by possibility); for aught one knows.